Csharp/C Sharp/GUI Windows Form/Form Frame Window — различия между версиями

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Текущая версия на 14:33, 26 мая 2010

Add controls to a form

<source lang="csharp"> /* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794

  • /

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace AddControls {

 /// <summary>
 /// Summary description for AddControls.
 /// </summary>
 public class AddControls : System.Windows.Forms.Form
 {
   private System.Windows.Forms.ListBox listBox1;
   private System.Windows.Forms.Button button1;
   private System.Windows.Forms.TextBox textBox1;
   private System.Windows.Forms.Button button2;
   /// <summary>
   /// Required designer variable.
   /// </summary>
   private System.ruponentModel.Container components = null;
   public AddControls()
   {
     //
     // Required for Windows Form Designer support
     //
     InitializeComponent();
     //
     // TODO: Add any constructor code after InitializeComponent call
     //
   }
   /// <summary>
   /// Clean up any resources being used.
   /// </summary>
   protected override void Dispose( bool disposing )
   {
     if( disposing )
     {
       if (components != null) 
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   #region Windows Form Designer generated code
   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {
     this.button2 = new System.Windows.Forms.Button();
     this.textBox1 = new System.Windows.Forms.TextBox();
     this.button1 = new System.Windows.Forms.Button();
     this.listBox1 = new System.Windows.Forms.ListBox();
     this.SuspendLayout();
     // 
     // button2
     // 
     this.button2.Location = new System.Drawing.Point(160, 240);
     this.button2.Name = "button2";
     this.button2.Size = new System.Drawing.Size(96, 24);
     this.button2.TabIndex = 3;
     this.button2.Text = "Cancel";
     this.button2.Click += new System.EventHandler(this.button2_Click);
     // 
     // textBox1
     // 
     this.textBox1.Location = new System.Drawing.Point(38, 200);
     this.textBox1.Name = "textBox1";
     this.textBox1.Size = new System.Drawing.Size(216, 20);
     this.textBox1.TabIndex = 1;
     this.textBox1.Text = "";
     // 
     // button1
     // 
     this.button1.Location = new System.Drawing.Point(48, 240);
     this.button1.Name = "button1";
     this.button1.Size = new System.Drawing.Size(80, 24);
     this.button1.TabIndex = 2;
     this.button1.Text = "Add Item";
     this.button1.Click += new System.EventHandler(this.button1_Click);
     // 
     // listBox1
     // 
     this.listBox1.Location = new System.Drawing.Point(38, 32);
     this.listBox1.Name = "listBox1";
     this.listBox1.Size = new System.Drawing.Size(216, 147);
     this.listBox1.TabIndex = 0;
     // 
     // Form1
     // 
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.button2,
                                     this.button1,
                                     this.textBox1,
                                     this.listBox1});
     this.Name = "AddControls";
     this.Text = "AddControls";
     this.ResumeLayout(false);
   }
   #endregion
   /// <summary>
   /// The main entry point for the application.
   /// </summary>
   [STAThread]
   static void Main() 
   {
     Application.Run(new AddControls());
   }
   private void button1_Click(object sender, System.EventArgs e)
   {
     if (textBox1.Text == "")
       return;
     string strAdd = textBox1.Text;
     if (listBox1.FindString (strAdd, -1) < 0)
     {
       listBox1.Items.Add (strAdd);
       textBox1.Text = "";
       textBox1.Focus ();
       return;
     }
     MessageBox.Show ("\"" + strAdd + "\" is already in the list box", "Duplicate");
   }
   private void button2_Click(object sender, System.EventArgs e)
   {
     Application.Exit();
   }
 }

}


      </source>


Add control to a form window

<source lang="csharp"> using System; using System.Windows.Forms; using System.Drawing; public class PushMe2 : Form {

 Button pushMeButton;
 public PushMe2() {
   pushMeButton = new Button(); 
   pushMeButton.Text = "Push Me";
   pushMeButton.Height = 60;
   pushMeButton.Width = 80;
   pushMeButton.Top = 60;
   pushMeButton.Left = 60;
   pushMeButton.Click += new EventHandler(ButtonClicked);
   this.Controls.Add(pushMeButton);
   this.Height = 200;
   this.Width = 200;
   this.StartPosition = FormStartPosition.CenterScreen;
   this.Visible = true;
 }
 public void ButtonClicked(object source, EventArgs e) {
   Button b = (Button)source;
   if ( b.Text == "Push Me" ) {
     b.Text = "Ouch";
   }
   else {
     b.Text = "Push Me";
   }
 }
 static void Main() {
   Application.Run(new PushMe2());
 }

}


      </source>


A form-based Windows Skeleton

<source lang="csharp"> // A form-based Windows Skeleton.

using System; using System.Windows.Forms;

// WinSkel is derived from Form. public class WinSkel : Form {

 public WinSkel() { 
   // Give the window a name. 
   Text = "A Windows Skeleton"; 
 }   

 // Main is used only to start the application. 
 [STAThread] 
 public static void Main() { 
   WinSkel skel = new WinSkel(); // create a form 

   // Start the window running. 
   Application.Run(skel); 
 } 

}

      </source>


Assign Form window default value

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms; public class EnterPrice : Form {

 private Button enter = new Button();
 private Label answer = new Label();
 private TextBox text = new TextBox( );
 public EnterPrice( ) {
   enter.Text = "Enter Price";
   text.Text = "";
   answer.Text = "";
   Size = new Size(300,200);
   answer.Size = new Size(200,50);
   enter.Location = new Point(30 + enter.Width, 30);
   text.Location = new Point (40 + enter.Width + enter.Width, 30);
   answer.Location = new Point(20, 60);
   AcceptButton = enter;
   Controls.Add(text);
   Controls.Add(answer);
   Controls.Add(enter);
   enter.Click += new EventHandler(Enter_Click);
 }
 protected void Enter_Click(Object sender, EventArgs e) {
   try{
   Console.WriteLine(Double.Parse(text.Text));
   }catch(Exception){
   }
   text.Text = "";
   text.Focus();
 }
 static void Main() {
   Application.Run(new EnterPrice());
 }

}

      </source>


Auto scroll form window

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 public class Form1 : System.Windows.Forms.Form
 {
   private System.Windows.Forms.Label label1;
   private System.ruponentModel.Container components;
 
   public Form1()
   {
     InitializeComponent();
   }
   protected override void Dispose( bool disposing )
   {
     if( disposing )
     {
       if (components != null) 
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   private void InitializeComponent()
   {
     this.label1 = new System.Windows.Forms.Label();
     this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F);
     this.label1.Location = new System.Drawing.Point(16, 16);
     this.label1.Size = new System.Drawing.Size(376, 224);
     this.label1.TabIndex = 0;
     this.label1.Text = "Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text ";
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.AutoScroll = true;
     this.AutoScrollMinSize = new System.Drawing.Size(300, 300);
     this.ClientSize = new System.Drawing.Size(403, 256);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {this.label1});
     this.Text = "Form1";
   }
   [STAThread]
   static void Main() 
   {
     Application.Run(new Form1());
   }
 }


      </source>


AutoScrollPosition

<source lang="csharp">

using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Drawing.Drawing2D; public class Form1 : Form {

   private Rectangle rectangleBounds = new Rectangle(new Point(0, 0), new Size(200, 200));
   private Rectangle ellipseBounds = new Rectangle(new Point(50, 200), new Size(200, 150));
   private Pen bluePen = new Pen(Color.Blue, 3);
   private Pen redPen = new Pen(Color.Red, 2);
   private Brush solidAzureBrush = Brushes.Azure;
   private Brush solidYellowBrush = new SolidBrush(Color.Yellow);
   static private Brush brickBrush = new HatchBrush(HatchStyle.DiagonalBrick,Color.DarkGoldenrod, Color.Cyan);
   private Pen brickWidePen = new Pen(brickBrush, 10);
   public Form1() {
   }
   protected override void OnPaint(PaintEventArgs e) {
       base.OnPaint(e);
       Graphics dc = e.Graphics;
       Point scrollOffset = this.AutoScrollPosition;
       dc.TranslateTransform(scrollOffset.X, scrollOffset.Y);
       if (e.ClipRectangle.Top + scrollOffset.X < 350 ||
           e.ClipRectangle.Left + scrollOffset.Y < 250) {
           dc.DrawRectangle(bluePen, rectangleBounds);
           dc.FillRectangle(solidYellowBrush, rectangleBounds);
           dc.DrawEllipse(redPen, ellipseBounds);
           dc.FillEllipse(solidAzureBrush, ellipseBounds);
           dc.DrawLine(brickWidePen, rectangleBounds.Location,ellipseBounds.Location + ellipseBounds.Size);
       }
   }
   public static void Main() {
       Application.Run(new Form1());
   }

}

</source>


Center form window

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 public class Form1 : System.Windows.Forms.Form
 {
   private Button myButton; 
   public Form1()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
       
           this.StartPosition=FormStartPosition.CenterScreen;

// CenterToScreen();

     myButton = new Button();
     myButton.Text = "www.nfex.ru";
     myButton.Location = new System.Drawing.Point(64, 32);
     myButton.Size = new System.Drawing.Size(150, 50);
     Controls.Add(myButton);
   }
   static void Main() 
   {
     Application.Run(new Form1());
   }
 }


      </source>


Change Form window background

<source lang="csharp"> using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form{

   private System.ruponentModel.IContainer components;
 public Form1(){
   InitializeComponent();
 }
 #region Windows Form Designer generated code
 private void InitializeComponent(){
     this.ruponents = new System.ruponentModel.Container();
     this.timer1 = new System.Windows.Forms.Timer(this.ruponents);
     this.timer1.Enabled = true;
     this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
     this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
     this.ClientSize = new System.Drawing.Size(292, 260);
     this.Name = "Form1";
     this.Text = "LinearGradientBrush Demo";
     this.Load += new System.EventHandler(this.Form1_Load);
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
 #endregion
 static void Main(){
   Application.Run(new Form1());
 }
   private void Form1_Load(object sender, System.EventArgs e) {
     this.BackColor = Color.FromArgb(255, 0, 0, 255);  
   }
   private System.Windows.Forms.Timer timer1;
   private float angle = 0;
   private LinearGradientBrush GetBrush()
   {
     return new LinearGradientBrush(
       new Rectangle( 20, 20, 200, 100),
       Color.Orange,
       Color.Yellow,
       0.0F,
       true);
   }
   private void Rotate( Graphics graphics, LinearGradientBrush brush )
   {
     brush.RotateTransform(angle);
     brush.SetBlendTriangularShape(.5F);
     graphics.FillRectangle(brush, brush.Rectangle);
   }
   private void Rotate(Graphics graphics)
   {
     angle += 5 % 360;
     Rotate(graphics, GetBrush());
   }
   private void timer1_Tick(object sender, System.EventArgs e)
   {
     Rotate(CreateGraphics());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {
     Rotate(e.Graphics);
   }

}


      </source>


Change Form window ownership

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class ChildForm : Form {

 public System.Windows.Forms.Label lblState;
 public ChildForm()
 {
   InitializeComponent();
 }
 private void InitializeComponent()
 {
   this.lblState = new System.Windows.Forms.Label();
   this.SuspendLayout();
   // 
   // lblState
   // 
   this.lblState.Location = new System.Drawing.Point(26, 24);
   this.lblState.Name = "lblState";
   this.lblState.Size = new System.Drawing.Size(184, 56);
   this.lblState.TabIndex = 2;
   // 
   // ChildForm
   // 
   this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
   this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
   this.ClientSize = new System.Drawing.Size(236, 104);
   this.Controls.Add(this.lblState);
   this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
   this.Name = "ChildForm";
   this.Text = "ChildForm";
   this.ResumeLayout(false);
 }
 

} public class ParentForm : Form{

 private System.Windows.Forms.Button cmdReleaseOwnership;
 private System.Windows.Forms.Button cmdAddOwnership;
 public ParentForm()
 {
   InitializeComponent();
   frmOwned.Show();
 }
 private ChildForm frmOwned = new ChildForm();
 private void cmdAddOwnership_Click(object sender, System.EventArgs e)
 {
   this.AddOwnedForm(frmOwned);
   frmOwned.lblState.Text = "Owned. Minimize me to see the difference.";
 }
 private void cmdReleaseOwnership_Click(object sender, System.EventArgs e)
 {
   this.RemoveOwnedForm(frmOwned);
   frmOwned.lblState.Text = "Not owned! Minimize me to see the difference.";
 }
 private void InitializeComponent()
 {
   this.cmdReleaseOwnership = new System.Windows.Forms.Button();
   this.cmdAddOwnership = new System.Windows.Forms.Button();
   this.SuspendLayout();
   // 
   // cmdReleaseOwnership
   // 
   this.cmdReleaseOwnership.FlatStyle = System.Windows.Forms.FlatStyle.System;
   this.cmdReleaseOwnership.Location = new System.Drawing.Point(150, 197);
   this.cmdReleaseOwnership.Name = "cmdReleaseOwnership";
   this.cmdReleaseOwnership.Size = new System.Drawing.Size(128, 32);
   this.cmdReleaseOwnership.TabIndex = 6;
   this.cmdReleaseOwnership.Text = "Remove Ownership";
   this.cmdReleaseOwnership.Click += new System.EventHandler(this.cmdReleaseOwnership_Click);
   // 
   // cmdAddOwnership
   // 
   this.cmdAddOwnership.FlatStyle = System.Windows.Forms.FlatStyle.System;
   this.cmdAddOwnership.Location = new System.Drawing.Point(14, 197);
   this.cmdAddOwnership.Name = "cmdAddOwnership";
   this.cmdAddOwnership.Size = new System.Drawing.Size(120, 32);
   this.cmdAddOwnership.TabIndex = 5;
   this.cmdAddOwnership.Text = "Set Ownership";
   this.cmdAddOwnership.Click += new System.EventHandler(this.cmdAddOwnership_Click);
   // 
   // ParentForm
   // 
   this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
   this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
   this.ClientSize = new System.Drawing.Size(292, 266);
   this.Controls.Add(this.cmdReleaseOwnership);
   this.Controls.Add(this.cmdAddOwnership);
   this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
   this.Name = "ParentForm";
   this.Text = "Owner";

// this.Load += new System.EventHandler(this.ParentForm_Load);

   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main()
 {
   Application.EnableVisualStyles();
   Application.Run(new ParentForm());
 }

}


      </source>


Change the background and text colors of a form using Color Dialog

<source lang="csharp"> using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data;

  public class ShowColorsComplex : System.Windows.Forms.Form
  {
     private System.Windows.Forms.Button backgroundColorButton;
     private System.Windows.Forms.Button textColorButton;
     public ShowColorsComplex()
     {
        InitializeComponent();
     }
     private void InitializeComponent()
     {
        this.backgroundColorButton = new System.Windows.Forms.Button();
        this.textColorButton = new System.Windows.Forms.Button();
        this.SuspendLayout();
        // 
        // backgroundColorButton
        // 
        this.backgroundColorButton.Location = new System.Drawing.Point(16, 16);
        this.backgroundColorButton.Name = "backgroundColorButton";
        this.backgroundColorButton.Size = new System.Drawing.Size(264, 32);
        this.backgroundColorButton.TabIndex = 0;
        this.backgroundColorButton.Text = "Change Background Color";
        this.backgroundColorButton.Click += new System.EventHandler(this.backgroundColorButton_Click);
        // 
        // textColorButton
        // 
        this.textColorButton.Location = new System.Drawing.Point(16, 64);
        this.textColorButton.Name = "textColorButton";
        this.textColorButton.Size = new System.Drawing.Size(264, 32);
        this.textColorButton.TabIndex = 1;
        this.textColorButton.Text = "Change Text Color";
        this.textColorButton.Click += new System.EventHandler(this.textColorButton_Click);
        // 
        // ShowColorsComplex
        // 
        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
        this.ClientSize = new System.Drawing.Size(292, 109);
        this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                     this.textColorButton,
                                                                     this.backgroundColorButton});
        this.Name = "ShowColorsComplex";
        this.Text = "ShowColorsComplex";
        this.ResumeLayout(false);
     }
     static void Main() 
     {
        Application.Run( new ShowColorsComplex() );
     }
     private void textColorButton_Click(object sender, System.EventArgs e ){
        ColorDialog colorChooser = new ColorDialog();
        DialogResult result;
        result = colorChooser.ShowDialog();
        if ( result == DialogResult.Cancel )
           return;
        
        backgroundColorButton.ForeColor = colorChooser.Color;
        textColorButton.ForeColor = colorChooser.Color;
     }
     private void backgroundColorButton_Click(object sender, System.EventArgs e ){
        ColorDialog colorChooser = new ColorDialog();
        DialogResult result;
        colorChooser.FullOpen = true;
        result = colorChooser.ShowDialog();
        if ( result == DialogResult.Cancel )
           return;
        this.BackColor = colorChooser.Color;
     }
  }


      </source>


Create Graphics Object from form window handle

<source lang="csharp"> using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form {

   private System.Windows.Forms.GroupBox groupBox1;
   private System.Windows.Forms.CheckBox checkBox1;
   private System.Windows.Forms.CheckBox checkBox2;
   private System.Windows.Forms.CheckBox checkBox3;
   private System.Windows.Forms.RadioButton radioButton1;
   private System.Windows.Forms.RadioButton radioButton2;
   private System.Windows.Forms.RadioButton radioButton3;
   private System.Windows.Forms.Button button1;
   private System.ruponentModel.Container components = null;
   public Form1() {
     InitializeComponent();
   }
   private void InitializeComponent() {
           this.groupBox1 = new System.Windows.Forms.GroupBox();
           this.checkBox1 = new System.Windows.Forms.CheckBox();
           this.checkBox2 = new System.Windows.Forms.CheckBox();
           this.checkBox3 = new System.Windows.Forms.CheckBox();
           this.radioButton1 = new System.Windows.Forms.RadioButton();
           this.radioButton2 = new System.Windows.Forms.RadioButton();
           this.radioButton3 = new System.Windows.Forms.RadioButton();
           this.button1 = new System.Windows.Forms.Button();
           this.groupBox1.SuspendLayout();
           this.SuspendLayout();
           // 
           // groupBox1
           // 
           this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                   this.radioButton1,
                                                                                   this.radioButton2,
                                                                                   this.radioButton3});
           this.groupBox1.Location = new System.Drawing.Point(8, 120);
           this.groupBox1.Name = "groupBox1";
           this.groupBox1.Size = new System.Drawing.Size(120, 144);
           this.groupBox1.TabIndex = 0;
           this.groupBox1.TabStop = false;
           this.groupBox1.Text = "Color";
           this.groupBox1.Enter += new System.EventHandler(this.groupBox1_Enter);
           // 
           // checkBox1
           // 
           this.checkBox1.Location = new System.Drawing.Point(8, 8);
           this.checkBox1.Name = "checkBox1";
           this.checkBox1.TabIndex = 1;
           this.checkBox1.Text = "Circle";
           // 
           // checkBox2
           // 
           this.checkBox2.Location = new System.Drawing.Point(8, 40);
           this.checkBox2.Name = "checkBox2";
           this.checkBox2.TabIndex = 2;
           this.checkBox2.Text = "Rectangle";
           // 
           // checkBox3
           // 
           this.checkBox3.Location = new System.Drawing.Point(8, 72);
           this.checkBox3.Name = "checkBox3";
           this.checkBox3.TabIndex = 3;
           this.checkBox3.Text = "String";
           // 
           // radioButton1
           // 
           this.radioButton1.Location = new System.Drawing.Point(8, 32);
           this.radioButton1.Name = "radioButton1";
           this.radioButton1.TabIndex = 4;
           this.radioButton1.Text = "Red";
           this.radioButton1.CheckedChanged += new System.EventHandler(this.radioButton1_CheckedChanged);
           // 
           // radioButton2
           // 
           this.radioButton2.Location = new System.Drawing.Point(8, 64);
           this.radioButton2.Name = "radioButton2";
           this.radioButton2.TabIndex = 5;
           this.radioButton2.Text = "Green";
           // 
           // radioButton3
           // 
           this.radioButton3.Location = new System.Drawing.Point(8, 96);
           this.radioButton3.Name = "radioButton3";
           this.radioButton3.TabIndex = 6;
           this.radioButton3.Text = "Blue";
           // 
           // button1
           // 
           this.button1.Location = new System.Drawing.Point(8, 280);
           this.button1.Name = "button1";
           this.button1.Size = new System.Drawing.Size(112, 32);
           this.button1.TabIndex = 4;
           this.button1.Text = "Draw";
           this.button1.Click += new System.EventHandler(this.button1_Click);
           // 
           // Form1
           // 
           this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
           this.ClientSize = new System.Drawing.Size(408, 317);
           this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                         this.button1,
                                                                         this.checkBox3,
                                                                         this.checkBox2,
                                                                         this.checkBox1,
                                                                         this.groupBox1});
           this.Name = "Form1";
           this.Text = "CheckBox and RadioButton Sample";
           this.groupBox1.ResumeLayout(false);
           this.ResumeLayout(false);
       }
       [STAThread]
       static void Main() 
       {
           Application.Run(new Form1());
       }
       private void groupBox1_Enter(object sender, System.EventArgs e)
       {
          Console.WriteLine("group box enter event");
       }
       private void radioButton1_CheckedChanged(object sender, System.EventArgs e)
       {
          Console.WriteLine("Radio Button checked changed event");
       }
       private void button1_Click(object sender, System.EventArgs e)
       {
           Graphics g = Graphics.FromHwnd(this.Handle);
           String str = "";
           Rectangle rc = new Rectangle(150, 50, 250, 250);
           
           if(radioButton1.Checked)
           {
               str = "red";
           }
           if(radioButton2.Checked)
           {
               str+="Green";
           }
           if(radioButton3.Checked)
           {
               str+="Blue";
           }
           if (checkBox1.Checked)
           {
               str+="Ellipse";
           }
           if (checkBox2.Checked)
           {
               str += "Rectangle";
           }
           if (checkBox3.Checked)
           {
               g.FillRectangle(new SolidBrush(Color.White), rc);
               g.DrawString(str, new Font("Verdana", 12), new SolidBrush(Color.Black), rc);
           }
           
       }
   }


      </source>


Demonstrates creating a form in a console program

<source lang="csharp"> /* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794

  • /

// Form.cs -- Demonstrates creating a form in a console program // // Compile this program with the following command line: // C:>csc Form.cs using System; using System.Windows.Forms; namespace nsForm {

   public class clsMainForm
   {
       static public void Main ()
       {
           Application.Run(new Form());
       }
   }

}


      </source>


Draw image based on the window size

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 using System.Drawing.Imaging;
 public class Form1 : System.Windows.Forms.Form
 {
   public Form1()
   {
     InitializeComponent();
   }
   private void InitializeComponent()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Text = "";
     this.Resize += new System.EventHandler(this.Form1_Resize);
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
   static void Main() 
   {
     Application.Run(new Form1());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {      
     Graphics g = e.Graphics;
     Bitmap bmp = new Bitmap("winter.jpg");
     Rectangle r = new Rectangle(0, 0, bmp.Width, bmp.Height);
     g.DrawImage(bmp, this.ClientRectangle);
   }
   private void Form1_Resize(object sender, System.EventArgs e)
   {
     Invalidate();
   }
 }


      </source>


Form for data input

<source lang="csharp"> /* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794

  • /

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace Employee {

 /// <summary>
 /// Summary description for Form1.
 /// </summary>
 public class EmployeeForm1 : System.Windows.Forms.Form
 {
   private System.Windows.Forms.ListBox listBox1;
   private System.Windows.Forms.Button button1;
   private System.Windows.Forms.Button button2;
   /// <summary>
   /// Required designer variable.
   /// </summary>
   private System.ruponentModel.Container components = null;
   public EmployeeForm1()
   {
     //
     // Required for Windows Form Designer support
     //
     InitializeComponent();
     //
     // TODO: Add any constructor code after InitializeComponent call
     //
   }
   /// <summary>
   /// Clean up any resources being used.
   /// </summary>
   protected void Dispose( bool disposing )
   {
     if( disposing )
     {
       if (components != null) 
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   #region Windows Form Designer generated code
   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {
     this.button1 = new System.Windows.Forms.Button();
     this.button2 = new System.Windows.Forms.Button();
     this.listBox1 = new System.Windows.Forms.ListBox();
     this.SuspendLayout();
     // 
     // button1
     // 
     this.button1.Location = new System.Drawing.Point(48, 240);
     this.button1.Name = "button1";
     this.button1.Size = new System.Drawing.Size(80, 24);
     this.button1.TabIndex = 2;
     this.button1.Text = "Add Item";
     this.button1.Click += new System.EventHandler(this.button1_Click);
     // 
     // button2
     // 
     this.button2.Location = new System.Drawing.Point(160, 240);
     this.button2.Name = "button2";
     this.button2.Size = new System.Drawing.Size(96, 24);
     this.button2.TabIndex = 3;
     this.button2.Text = "Cancel";
     this.button2.Click += new System.EventHandler(this.button2_Click);
     // 
     // listBox1
     // 
     this.listBox1.Location = new System.Drawing.Point(38, 32);
     this.listBox1.Name = "listBox1";
     this.listBox1.Size = new System.Drawing.Size(216, 186);
     this.listBox1.TabIndex = 0;
     this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_OnDoubleClick);
     // 
     // Form1
     // 
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.listBox1,
                                     this.button2,
                                     this.button1});
     this.Name = "Form1";
     this.Text = "Form1";
     this.ResumeLayout(false);
   }
   #endregion
   /// <summary>
   /// The main entry point for the application.
   /// </summary>
   [STAThread]
   static void Main() 
   {
     Application.Run(new EmployeeForm1());
   }
   private void button1_Click(object sender, System.EventArgs e)
   {
     EMPLOYEE emp = new EMPLOYEE();
     EmpForm eform = new EmpForm (emp);
     if (eform.ShowDialog (this) == DialogResult.Cancel)
       return;
     eform.GetEmployeeData (out emp);
     listBox1.Items.Add (emp);
   }
   private void button2_Click(object sender, System.EventArgs e)
   {
     Application.Exit ();
   }
   private void listBox1_OnDoubleClick(object sender, System.EventArgs e)
   {
     int index = listBox1.SelectedIndex;
     if (index < 0)
       return;
     EMPLOYEE emp = (EMPLOYEE) listBox1.Items[index];
     EmpForm eform = new EmpForm (emp);
     if (eform.ShowDialog (this) == DialogResult.Cancel)
       return;
     eform.GetEmployeeData (out emp);
     listBox1.Items.RemoveAt (index);
     listBox1.Items.Insert (index,emp);
   }
 }
 public struct EMPLOYEE
 {
   public string  FirstName;
   public string  LastName;
   public string  Address;
   public string  City;
   public string  State;
   public string  Zip;
   public override string ToString ()
   {
     return (LastName + ", " + FirstName);
   }
 }
 /// <summary>
 /// Summary description for EmpForm.
 /// </summary>
 public class EmpForm : System.Windows.Forms.Form
 {
   private System.Windows.Forms.TextBox textBox1;
   private System.Windows.Forms.TextBox textBox2;
   private System.Windows.Forms.TextBox textBox3;
   private System.Windows.Forms.TextBox textBox4;
   private System.Windows.Forms.TextBox textBox5;
   private System.Windows.Forms.TextBox textBox6;
   private System.Windows.Forms.Label label1;
   private System.Windows.Forms.Label label2;
   private System.Windows.Forms.Label label3;
   private System.Windows.Forms.Label label4;
   private System.Windows.Forms.Label label5;
   private System.Windows.Forms.Label label6;
   private System.Windows.Forms.Button button1;
   private System.Windows.Forms.Button button2;
   /// <summary>
   /// Required designer variable.
   /// </summary>
   private System.ruponentModel.Container components = null;
   public EmpForm(EMPLOYEE emp)
   {
     //
     // Required for Windows Form Designer support
     //
     InitializeComponent();
     //
     // TODO: Add any constructor code after InitializeComponent call
     //
     textBox1.Text = emp.FirstName;
     textBox2.Text = emp.LastName;
     textBox3.Text = emp.Address;
     textBox4.Text = emp.City;
     textBox5.Text = emp.State;
     textBox6.Text = emp.Zip;
   }
   /// <summary>
   /// Clean up any resources being used.
   /// </summary>
   protected override void Dispose( bool disposing )
   {
     if( disposing )
     {
       if(components != null)
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   #region Windows Form Designer generated code
   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {
     this.textBox4 = new System.Windows.Forms.TextBox();
     this.label1 = new System.Windows.Forms.Label();
     this.label2 = new System.Windows.Forms.Label();
     this.label3 = new System.Windows.Forms.Label();
     this.textBox5 = new System.Windows.Forms.TextBox();
     this.button1 = new System.Windows.Forms.Button();
     this.button2 = new System.Windows.Forms.Button();
     this.label5 = new System.Windows.Forms.Label();
     this.label6 = new System.Windows.Forms.Label();
     this.textBox2 = new System.Windows.Forms.TextBox();
     this.textBox3 = new System.Windows.Forms.TextBox();
     this.label4 = new System.Windows.Forms.Label();
     this.textBox1 = new System.Windows.Forms.TextBox();
     this.textBox6 = new System.Windows.Forms.TextBox();
     this.SuspendLayout();
     // 
     // textBox4
     // 
     this.textBox4.Location = new System.Drawing.Point(16, 182);
     this.textBox4.Name = "textBox4";
     this.textBox4.Size = new System.Drawing.Size(120, 20);
     this.textBox4.TabIndex = 3;
     this.textBox4.Text = "";
     // 
     // label1
     // 
     this.label1.Location = new System.Drawing.Point(16, 16);
     this.label1.Name = "label1";
     this.label1.Size = new System.Drawing.Size(136, 16);
     this.label1.TabIndex = 8;
     this.label1.Text = "First Name";
     // 
     // label2
     // 
     this.label2.Location = new System.Drawing.Point(16, 64);
     this.label2.Name = "label2";
     this.label2.Size = new System.Drawing.Size(128, 16);
     this.label2.TabIndex = 9;
     this.label2.Text = "Last Name";
     // 
     // label3
     // 
     this.label3.Location = new System.Drawing.Point(16, 109);
     this.label3.Name = "label3";
     this.label3.Size = new System.Drawing.Size(120, 19);
     this.label3.TabIndex = 10;
     this.label3.Text = "Address";
     // 
     // textBox5
     // 
     this.textBox5.Location = new System.Drawing.Point(168, 184);
     this.textBox5.Name = "textBox5";
     this.textBox5.Size = new System.Drawing.Size(32, 20);
     this.textBox5.TabIndex = 4;
     this.textBox5.Text = "";
     // 
     // button1
     // 
     this.button1.DialogResult = System.Windows.Forms.DialogResult.OK;
     this.button1.Location = new System.Drawing.Point(48, 224);
     this.button1.Name = "button1";
     this.button1.TabIndex = 6;
     this.button1.Text = "OK";
     this.button1.Click += new System.EventHandler(this.button1_Click);
     // 
     // button2
     // 
     this.button2.CausesValidation = false;
     this.button2.DialogResult = System.Windows.Forms.DialogResult.Cancel;
     this.button2.Location = new System.Drawing.Point(160, 224);
     this.button2.Name = "button2";
     this.button2.TabIndex = 7;
     this.button2.Text = "Cancel";
     // 
     // label5
     // 
     this.label5.Location = new System.Drawing.Point(168, 163);
     this.label5.Name = "label5";
     this.label5.Size = new System.Drawing.Size(40, 16);
     this.label5.TabIndex = 12;
     this.label5.Text = "State";
     // 
     // label6
     // 
     this.label6.Location = new System.Drawing.Point(224, 163);
     this.label6.Name = "label6";
     this.label6.Size = new System.Drawing.Size(48, 16);
     this.label6.TabIndex = 13;
     this.label6.Text = "Zip";
     // 
     // textBox2
     // 
     this.textBox2.Location = new System.Drawing.Point(16, 82);
     this.textBox2.Name = "textBox2";
     this.textBox2.Size = new System.Drawing.Size(208, 20);
     this.textBox2.TabIndex = 1;
     this.textBox2.Text = "";
     // 
     // textBox3
     // 
     this.textBox3.Location = new System.Drawing.Point(16, 132);
     this.textBox3.Name = "textBox3";
     this.textBox3.Size = new System.Drawing.Size(208, 20);
     this.textBox3.TabIndex = 2;
     this.textBox3.Text = "";
     // 
     // label4
     // 
     this.label4.Location = new System.Drawing.Point(16, 163);
     this.label4.Name = "label4";
     this.label4.Size = new System.Drawing.Size(120, 16);
     this.label4.TabIndex = 11;
     this.label4.Text = "City";
     // 
     // textBox1
     // 
     this.textBox1.Location = new System.Drawing.Point(16, 32);
     this.textBox1.Name = "textBox1";
     this.textBox1.Size = new System.Drawing.Size(160, 20);
     this.textBox1.TabIndex = 0;
     this.textBox1.Text = "";
     // 
     // textBox6
     // 
     this.textBox6.Location = new System.Drawing.Point(224, 184);
     this.textBox6.Name = "textBox6";
     this.textBox6.Size = new System.Drawing.Size(48, 20);
     this.textBox6.TabIndex = 5;
     this.textBox6.Text = "";
     // 
     // EmpForm
     // 
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.CancelButton = this.button2;
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.button2,
                                     this.button1,
                                     this.label6,
                                     this.label5,
                                     this.label4,
                                     this.label3,
                                     this.label2,
                                     this.label1,
                                     this.textBox6,
                                     this.textBox5,
                                     this.textBox4,
                                     this.textBox3,
                                     this.textBox2,
                                     this.textBox1});
     this.MinimizeBox = false;
     this.Name = "EmpForm";
     this.ShowInTaskbar = false;
     this.Text = "EmpForm";
     this.ResumeLayout(false);
   }
   #endregion
   public void GetEmployeeData (out EMPLOYEE emp)
   {
     emp.FirstName = textBox1.Text;
     emp.LastName = textBox2.Text;
     emp.Address = textBox3.Text;
     emp.City = textBox4.Text;
     emp.State = textBox5.Text;
     emp.Zip = textBox6.Text;
   }
   private void button1_Click(object sender, System.EventArgs e)
   {
     this.Close ();
   }
 }
 

}


      </source>


Form hide

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms;

 public class Form2 : Form
 {
   private System.Windows.Forms.Button Button3;
   private System.Windows.Forms.Button Button2;
   private System.Windows.Forms.Button Button1;
     
     
   public Form2()
   {
     InitializeComponent();
   }
   private void InitializeComponent()
   {
     this.Button3 = new System.Windows.Forms.Button();
     this.Button2 = new System.Windows.Forms.Button();
     this.Button1 = new System.Windows.Forms.Button();
     this.SuspendLayout();
     // 
     // Button3
     // 
     this.Button3.Location = new System.Drawing.Point(120, 56);
     this.Button3.Name = "Button3";
     this.Button3.Size = new System.Drawing.Size(88, 32);
     this.Button3.TabIndex = 8;
     this.Button3.Text = "Become Child of Parent2";
     this.Button3.Click += new System.EventHandler(this.Button3_Click);
     // 
     // Button2
     // 
     this.Button2.Location = new System.Drawing.Point(12, 56);
     this.Button2.Name = "Button2";
     this.Button2.Size = new System.Drawing.Size(88, 32);
     this.Button2.TabIndex = 7;
     this.Button2.Text = "Become Child of Parent1";
     this.Button2.Click += new System.EventHandler(this.Button2_Click);
     // 
     // Button1
     // 
     this.Button1.Location = new System.Drawing.Point(12, 12);
     this.Button1.Name = "Button1";
     this.Button1.Size = new System.Drawing.Size(88, 32);
     this.Button1.TabIndex = 6;
     this.Button1.Text = "Become Parent";
     this.Button1.Click += new System.EventHandler(this.Button1_Click);
     // 
     // Form2
     // 
     this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
     this.ClientSize = new System.Drawing.Size(292, 154);
     this.Controls.Add(this.Button3);
     this.Controls.Add(this.Button2);
     this.Controls.Add(this.Button1);
     this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
     this.Name = "Form2";
     this.Text = "Form2";
     this.ResumeLayout(false);
   }
   private void Button1_Click(object sender, System.EventArgs e)
   {
     this.Hide();
     this.MdiParent = null;
     this.IsMdiContainer = true;
     this.Show();
   }
   private void Button2_Click(object sender, System.EventArgs e)
   {
     this.Hide();
     this.IsMdiContainer = false;
     this.MdiParent = Program.Main2;
     this.Show();
   }
   private void Button3_Click(object sender, System.EventArgs e)
   {
     this.Hide();
     this.IsMdiContainer = false;
     this.MdiParent = Program.Main1;
     this.Show();
   }
 }
 public class Form1 : Form
 {
   public Form1()
   {
     InitializeComponent();
   }
   private void Form1_FormClosed(object sender, FormClosedEventArgs e)
   {
     Application.Exit();
   }
   private void InitializeComponent()
   {
     this.SuspendLayout();
     this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
     this.ClientSize = new System.Drawing.Size(422, 351);
     this.IsMdiContainer = true;
     this.Name = "Form1";
     this.Text = "Form1";
     this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.Form1_FormClosed);
     this.ResumeLayout(false);
   }
 }
 static class Program
 {
   public static Form1 Main1 = new Form1();
   public static Form1 Main2 = new Form1();
   public static Form2 Child = new Form2();
   [STAThread]
   public static void Main()
   {
     Application.EnableVisualStyles();
     Main1.Text = "Parent 2";
     Main2.Text = "Parent 1";
     Main1.Show();
     Main2.Show();
     Child.MdiParent = Main2;
     Child.Show();
     System.Windows.Forms.Application.Run();
   }
 }


      </source>


FormStartPosition.CenterScreen

<source lang="csharp">

using System.Drawing; using System.Windows.Forms;

class FormProperties {

    public static void Main()
    {
         Form form = new Form();
  
         form.Text            = "Form Properties";
         form.BackColor       = Color.BlanchedAlmond;
         form.Width          *= 2;
         form.Height         /= 2;
  
         form.FormBorderStyle = FormBorderStyle.FixedSingle;
         form.MaximizeBox     = false;
         form.Cursor          = Cursors.Hand;
         form.StartPosition   = FormStartPosition.CenterScreen;
  
         Application.Run(form);
    }

}

</source>


Login from

<source lang="csharp"> /* Professional Windows GUI Programming Using C# by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury,

  Zach Greenvoss, Shripad Kulkarni, Neil Whitlow

Publisher: Peer Information ISBN: 1861007663

  • /

using System; using System.Drawing; using System.ruponentModel; using System.Windows.Forms; namespace Wrox.ProWinProg.Chapter01.WinFormNonVS {

  public class frmLogin : System.Windows.Forms.Form
  {
     System.Windows.Forms.TextBox txtUser;
     System.Windows.Forms.Button btnOK;
     System.Windows.Forms.Button btnCancel;
     public frmLogin()
     {
        txtUser = new System.Windows.Forms.TextBox();
        txtUser.Location = new Point(30, 15);
        txtUser.Size = new Size(250, 20);
        txtUser.Text = "";
        txtUser.Name = "txtUser";
        this.Controls.Add(txtUser);
        btnOK = new System.Windows.Forms.Button();
        btnOK.Location = new Point(40,
           (txtUser.Location.Y + txtUser.Size.Height + btnOK.Size.Height));
        btnOK.Text="OK";
        btnOK.Name="btnOK";
        this.Controls.Add(btnOK);
        btnCancel = new System.Windows.Forms.Button();
        btnCancel.Location = new Point((this.Size.Width -
                                        btnCancel.Size.Width) - 40,
           (txtUser.Location.Y + txtUser.Size.Height + btnOK.Size.Height));
        btnCancel.Text = "Cancel";
        btnCancel.Name = "btnCancel";
        this.Controls.Add(btnCancel);
        this.Size = new Size(this.Size.Width, btnCancel.Location.Y +
                             btnCancel.Size.Height + 60);
        btnCancel.Click += new System.EventHandler(btnCancelHandler);
        btnOK.Click += new System.EventHandler(btnEventHandler);
     }
     private void btnEventHandler(object sender, System.EventArgs e)
     {
        MessageBox.Show(((Button)sender).Name);
     }
  
     private void btnCancelHandler(object sender, System.EventArgs e)
     {
        MessageBox.Show("The second handler");
     }
     [STAThread]
     static void Main()
     {
        Application.Run(new frmLogin());
     }
  }

}

      </source>

<A href="http://www.nfex.ru/Code/CSharpDownload/WinFormVS.zip">WinFormVS.zip( 19 k)</a>


makes a new window out of a graphics path that has been traced on this forms space

<source lang="csharp"> /* GDI+ Programming in C# and VB .NET by Nick Symmonds Publisher: Apress ISBN: 159059035X

  • /

using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace CustomWindow {

   /// <summary>
   /// This project makes a new window out of a graphics path that has been traced on this forms space.
   /// Features include: Smoothing capability via turning sub paths into curves, etc
   /// Use point for stretching curve.
   /// 
   /// Have some kind of window that allows the user to set or view smoothing factor.
   /// The user can then see the shape in the smoother form side-by-side with the original.
   /// The user can then choose which one to make the new window with.
   /// Show the smoothing factor as percentage reduction in number of points = 1-(p1/p2)
   /// Have user choose some basic aspects of the form.
   ///   min and max buttons
   ///   border style
   ///   inflation size
   ///     have another form that has a slider so the user can graphically size the shape
   ///   opacity
   ///   background color
   ///   background image
   ///   Quit button on form
   /// </summary>
   public class CustomWindow : System.Windows.Forms.Form
   {
   #region Class Local Storage
   private GraphicsPath m_WindowPath;
   private GraphicsPath m_path;
   private Point m_StartPoint;
   private Point m_LastPoint;
   private bool  m_Drawing;
   private Rectangle InvalidRect;
   private Cursor DrawCursor;
   #endregion
   private System.Windows.Forms.MainMenu mainMenu1;
   private System.Windows.Forms.MenuItem menuItem1;
   private System.Windows.Forms.MenuItem mnuExit;
   private System.Windows.Forms.MenuItem menuItem3;
   private System.Windows.Forms.MenuItem menuItem4;
   private System.Windows.Forms.MenuItem menuItem5;
   private System.Windows.Forms.MenuItem menuItem2;
   private System.Windows.Forms.MenuItem menuItem6;
   private System.Windows.Forms.MenuItem menuItem7;
   private System.Windows.Forms.MenuItem menuItem8;
   private System.Windows.Forms.MenuItem menuItem9;
   private System.Windows.Forms.TreeView PathTree;
   private System.Windows.Forms.Panel P1;
   private System.Windows.Forms.Splitter TreeSplitter;
   private System.Windows.Forms.MenuItem menuItem10;
   private System.Windows.Forms.Splitter PanelSplitter;
   private System.Windows.Forms.RichTextBox DebugWindow;


       /// <summary>
       /// Required designer variable.
       /// </summary>
       private System.ruponentModel.Container components = null;
       public CustomWindow()
       {
           InitializeComponent();
     this.Icon = new Icon("Icon.ico");
     DrawCursor = new Cursor("Pen.cur");
     this.Size = new Size(800, 600);
     this.SetStyle(ControlStyles.AllPaintingInWmPaint,true);
     this.SetStyle(ControlStyles.DoubleBuffer,true);

// this.MouseDown += new MouseEventHandler(this.M_Down); // this.MouseUp += new MouseEventHandler(this.M_Up); // this.MouseMove += new MouseEventHandler(this.M_Move);

     P1.Paint      += new PaintEventHandler(this.PanelPaint);
     P1.MouseDown  += new MouseEventHandler(this.M_Down);
     P1.MouseUp    += new MouseEventHandler(this.M_Up);
     P1.MouseMove  += new MouseEventHandler(this.M_Move);
     m_WindowPath = new GraphicsPath();
     m_path = new GraphicsPath();
     InvalidRect = Rectangle.Empty;
     //Set RichTextBox properties
     DebugWindow.Height = this.Height /8;
     DebugWindow.Dock = DockStyle.Bottom;
     // Set properties of TreeView control.
     PathTree.Dock = DockStyle.Left;
     PathTree.Width = this.ClientSize.Width / 6;
     PathTree.TabIndex = 0;
     PathTree.Nodes.Add("Shapes");
     //Set Panel Properties
     P1.Dock = DockStyle.Fill;
     P1.BackColor = Color.Bisque;
     //Set up the splitters
     TreeSplitter.Location = new Point(PathTree.Width, 0);
     TreeSplitter.Size = new Size(2, this.Height);
     TreeSplitter.BackColor = Color.Black;
     PanelSplitter.Dock = DockStyle.Bottom;
     PanelSplitter.Height = 2;
     PanelSplitter.BackColor = Color.Black;
       }
       /// <summary>
       /// Clean up any resources being used.
       /// </summary>
       protected override void Dispose( bool disposing )
       {
           if( disposing )
           {
               if (components != null) 
               {
                   components.Dispose();
               }
           }
           base.Dispose( disposing );
       }
       #region Windows Form Designer generated code
       /// <summary>
       /// Required method for Designer support - do not modify
       /// the contents of this method with the code editor.
       /// </summary>
       private void InitializeComponent()
       {
     this.mainMenu1 = new System.Windows.Forms.MainMenu();
     this.menuItem1 = new System.Windows.Forms.MenuItem();
     this.mnuExit = new System.Windows.Forms.MenuItem();
     this.menuItem3 = new System.Windows.Forms.MenuItem();
     this.menuItem4 = new System.Windows.Forms.MenuItem();
     this.menuItem5 = new System.Windows.Forms.MenuItem();
     this.menuItem2 = new System.Windows.Forms.MenuItem();
     this.menuItem6 = new System.Windows.Forms.MenuItem();
     this.menuItem7 = new System.Windows.Forms.MenuItem();
     this.menuItem8 = new System.Windows.Forms.MenuItem();
     this.menuItem9 = new System.Windows.Forms.MenuItem();
     this.PathTree = new System.Windows.Forms.TreeView();
     this.P1 = new System.Windows.Forms.Panel();
     this.TreeSplitter = new System.Windows.Forms.Splitter();
     this.menuItem10 = new System.Windows.Forms.MenuItem();
     this.DebugWindow = new System.Windows.Forms.RichTextBox();
     this.PanelSplitter = new System.Windows.Forms.Splitter();
     this.SuspendLayout();
     // 
     // mainMenu1
     // 
     this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                             this.menuItem1,
                                                                             this.menuItem3,
                                                                             this.menuItem7});
     // 
     // menuItem1
     // 
     this.menuItem1.Index = 0;
     this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                             this.mnuExit});
     this.menuItem1.Text = "File";
     // 
     // mnuExit
     // 
     this.mnuExit.Index = 0;
     this.mnuExit.Text = "&Exit";
     this.mnuExit.Click += new System.EventHandler(this.mnuExit_Click);
     // 
     // menuItem3
     // 
     this.menuItem3.Index = 1;
     this.menuItem3.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                             this.menuItem4,
                                                                             this.menuItem10,
                                                                             this.menuItem5,
                                                                             this.menuItem2,
                                                                             this.menuItem6,
                                                                             this.menuItem9});
     this.menuItem3.Text = "Shape";
     // 
     // menuItem4
     // 
     this.menuItem4.Index = 0;
     this.menuItem4.Text = "Create";
     // 
     // menuItem5
     // 
     this.menuItem5.Index = 2;
     this.menuItem5.Text = "Resize";
     // 
     // menuItem2
     // 
     this.menuItem2.Index = 3;
     this.menuItem2.Text = "-";
     // 
     // menuItem6
     // 
     this.menuItem6.Index = 4;
     this.menuItem6.Text = "Load Shape";
     // 
     // menuItem7
     // 
     this.menuItem7.Index = 2;
     this.menuItem7.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                                                                             this.menuItem8});
     this.menuItem7.Text = "Form";
     // 
     // menuItem8
     // 
     this.menuItem8.Index = 0;
     this.menuItem8.Text = "Spawn";
     // 
     // menuItem9
     // 
     this.menuItem9.Index = 5;
     this.menuItem9.Text = "Save Shape";
     // 
     // PathTree
     // 
     this.PathTree.ImageIndex = -1;
     this.PathTree.Name = "PathTree";
     this.PathTree.SelectedImageIndex = -1;
     this.PathTree.Size = new System.Drawing.Size(88, 488);
     this.PathTree.TabIndex = 0;
     // 
     // P1
     // 
     this.P1.Location = new System.Drawing.Point(112, 16);
     this.P1.Name = "P1";
     this.P1.Size = new System.Drawing.Size(464, 472);
     this.P1.TabIndex = 1;
     // 
     // TreeSplitter
     // 
     this.TreeSplitter.Name = "TreeSplitter";
     this.TreeSplitter.Size = new System.Drawing.Size(8, 573);
     this.TreeSplitter.TabIndex = 2;
     this.TreeSplitter.TabStop = false;
     // 
     // menuItem10
     // 
     this.menuItem10.Index = 1;
     this.menuItem10.Text = "Smooth";
     // 
     // DebugWindow
     // 
     this.DebugWindow.Location = new System.Drawing.Point(24, 520);
     this.DebugWindow.Name = "DebugWindow";
     this.DebugWindow.Size = new System.Drawing.Size(536, 40);
     this.DebugWindow.TabIndex = 3;
     this.DebugWindow.Text = "richTextBox1";
     // 
     // PanelSplitter
     // 
     this.PanelSplitter.Location = new System.Drawing.Point(8, 0);
     this.PanelSplitter.Name = "PanelSplitter";
     this.PanelSplitter.Size = new System.Drawing.Size(8, 573);
     this.PanelSplitter.TabIndex = 4;
     this.PanelSplitter.TabStop = false;
     // 
     // CustomWindow
     // 
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(592, 573);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                 this.PanelSplitter,
                                                                 this.DebugWindow,
                                                                 this.TreeSplitter,
                                                                 this.P1,
                                                                 this.PathTree});
     this.Menu = this.mainMenu1;
     this.Name = "CustomWindow";
     this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
     this.Text = "CustomWindow";
     this.Load += new System.EventHandler(this.CustomWindow_Load);
     this.ResumeLayout(false);
   }
       #endregion
   #region Main Entry Point
       /// <summary>
       /// The main entry point for the application.
       /// </summary>
       [STAThread]
       static void Main() 
       {
           Application.Run(new CustomWindow());
       }
   #endregion
   private void CustomWindow_Load(object sender, System.EventArgs e)
   {
   }

// protected override void OnPaint(PaintEventArgs e) // { // Graphics G = e.Graphics; // PaintMe(e.Graphics); // }

   private void PanelPaint(object sender, PaintEventArgs e)
   {
     PaintMe(e.Graphics);
   }
   private void PaintMe(Graphics G)
   {
     G.SmoothingMode = SmoothingMode.AntiAlias;
     if (m_WindowPath.PointCount > 0)
       G.DrawPath(Pens.Black, m_WindowPath);
     if (m_path.PointCount > 0)
       G.DrawPath(Pens.Red, m_path);
   }
   private void M_Down(object sender, MouseEventArgs m)
   {
     m_StartPoint  = new Point(m.X, m.Y);
     m_LastPoint   = m_StartPoint;
     m_WindowPath  = new GraphicsPath();
     m_Drawing     = true;
     P1.Invalidate();
   }
   private void M_Up(object sender, MouseEventArgs m)
   {
     m_WindowPath.CloseFigure();
     m_Drawing     = false;
     //Smooth out the path by reducing lines that make up path
     m_path = SmootherPath(m_WindowPath);
     Matrix Q = new Matrix();
     Q.Translate(50, 5);
     m_path.Transform(Q);
     int a = m_WindowPath.PointCount;
     int b = m_path.PointCount;
     //Draw the paths and make a window.
     P1.Invalidate();
     MakeWindow();
   }
   private void M_Move(object sender, MouseEventArgs m)
   {
     if(m_Drawing)
     {
       m_WindowPath.AddLine(m_LastPoint.X, m_LastPoint.Y, m.X, m.Y);
       m_LastPoint.X = m.X;
       m_LastPoint.Y = m.Y;
       InvalidRect = Rectangle.Truncate(m_WindowPath.GetBounds());
       InvalidRect.Inflate( new Size(2, 2) );
       P1.Invalidate(InvalidRect);
     }
   }
   /// <doc>
   /// Start first with reducing the number of lines in this graphics path
   /// 1. read first point
   /// 2. if x value of next point = x value of last point then skip
   /// 3. if x value of next point != value of last point then...
   /// 3a. make line based on these two points
   /// 3b. add line to new path
   /// 3c. first point = next point 
   /// 4. repeat 1-3c
   /// 5. Repeat 1-4 for both X and Y
   /// </doc>
   private GraphicsPath SmootherPath(GraphicsPath gp)
   {
     PathData pd = gp.PathData;
     PointF pt1 = new Point(-1,-1);
     //First do all values in the X range
     GraphicsPath FixedPath_X = new GraphicsPath();
     foreach (PointF p in pd.Points)
     {
       if (pt1.X == -1)
       {
         pt1 = p;
         continue;
       }
       // If I introduced an error factor here I could smooth it out even more
       if (p.X != pt1.X)
       {
         FixedPath_X.AddLine(pt1, p);
         pt1 = p;
       }
     }
     FixedPath_X.CloseFigure();
     //Second do all values in the Y range
     pd = FixedPath_X.PathData;
     pt1 = new Point(-1,-1);
     GraphicsPath FixedPath_Y = new GraphicsPath();
     foreach (PointF p in pd.Points)
     {
       if (pt1.Y == -1)
       {
         pt1 = p;
         continue;
       }
       // If I introduced an error factor here I could smooth it out even more
       if (p.Y != pt1.Y)
       {
         FixedPath_Y.AddLine(pt1, p);
         pt1 = p;
       }
     }
     FixedPath_Y.CloseFigure();
     return FixedPath_Y;
   }
   private void MakeWindow()
   {
     Form frm = new Form();
     GraphicsPath path = (GraphicsPath)m_WindowPath.Clone();
     Matrix Xlate = new Matrix();
     //Find the lowest Y value and normalize all Y values to zero
     //Find the lowest X value and normalize all X values to zero
     PointF[] p = path.PathPoints;
     int Xoffset = 9999;
     int Yoffset = 9999;
     foreach (PointF p2 in p)
     {
       if (p2.X < Xoffset)
         Xoffset = (int)p2.X;
       if (p2.Y < Yoffset)
         Yoffset = (int)p2.Y;
     }
     Xlate.Translate(-Xoffset, -Yoffset);
     path.Transform(Xlate);
    
     // Set the paractical viewing region of the form
     frm.Region = new Region(path);
     //Set the size of the form
     Rectangle frmRect = Rectangle.Truncate(path.GetBounds());
     frm.Size = frmRect.Size;
     //Set some other parameters
     frm.StartPosition = FormStartPosition.CenterParent;
     frm.FormBorderStyle = FormBorderStyle.FixedSingle;
     frm.ShowDialog();
     frm.Dispose();
     Xlate.Dispose();
   }
   private void mnuExit_Click(object sender, System.EventArgs e)
   {
     this.Close();
   }
 }

}


      </source>

<A href="http://www.nfex.ru/Code/CSharpDownload/CustomWindow.zip">CustomWindow.zip( 34 k)</a>


Print out Form size and position related information

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms;

class FormSize: Form {

    public static void Main()
    {
         Application.Run(new FormSize());
    }
    public FormSize()
    {
         BackColor = Color.White;
    }
    protected override void OnMove(EventArgs ea)
    {
         Invalidate();
    }
    protected override void OnResize(EventArgs ea)
    {
         Invalidate();
    }
    protected override void OnPaint(PaintEventArgs pea)
    {
         Graphics graphics = pea.Graphics;
         string   str  = "Location: "        + Location        + "\n"   +
                         "Size: "            + Size            + "\n"   +
                         "Bounds: "          + Bounds          + "\n"   +
                         "Width: "           + Width           + "\n"   +
                         "Height: "          + Height          + "\n"   +
                         "Left: "            + Left            + "\n"   +
                         "Top: "             + Top             + "\n"   +
                         "Right: "           + Right           + "\n"   +
                         "Bottom: "          + Bottom          + "\n\n" +
                         "DesktopLocation: " + DesktopLocation + "\n"   +
                         "DesktopBounds: "   + DesktopBounds   + "\n\n" +
                         "ClientSize: "      + ClientSize      + "\n"   +
                         "ClientRectangle: " + ClientRectangle;
  
         graphics.DrawString(str, Font, Brushes.Black, 0, 0);
   }

}

</source>


Set ClientSize to change the form window size

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms;

class AutoScaleDemo: Form {

    public static void Main()
    {
         Application.Run(new AutoScaleDemo());
    }
    public AutoScaleDemo()
    {
         Font = new Font("Arial", 12);
         FormBorderStyle = FormBorderStyle.FixedSingle;
  
         int[] aiPointSize = { 8, 12, 16, 24, 32 };
  
         for (int i = 0; i < aiPointSize.Length; i++)
         {
              Button btn    = new Button();
              btn.Parent    = this;
              btn.Text      = "Use " + aiPointSize[i] + "-point font";
              btn.Tag       = aiPointSize[i];
              btn.Location  = new Point(4, 16 + 24 * i);
              btn.Size      = new Size(80, 16);
              btn.Click    += new EventHandler(ButtonOnClick);
         }
         ClientSize = new Size(88, 16 + 24 * aiPointSize.Length);
         AutoScaleBaseSize = new Size(4, 8);
    }
    protected override void OnPaint(PaintEventArgs pea)
    {
         pea.Graphics.DrawString(Text, Font, new SolidBrush(ForeColor), 0, 0);
    }
    void ButtonOnClick(object obj, EventArgs ea)
    {
         Button btn = (Button) obj;
  
         SizeF sizefOld = GetAutoScaleSize(Font);
         Font = new Font(Font.FontFamily, (int) btn.Tag);
         SizeF sizefNew = GetAutoScaleSize(Font);
  
         Scale(sizefNew.Width  / sizefOld.Width,sizefNew.Height / sizefOld.Height);
    }

}

</source>


Set Form window title and center the Form window on the desktop

<source lang="csharp"> using System; using System.Windows.Forms; using System.Drawing; public class TestForm2 {

 static void Main() {
   Form simpleForm = new Form();
   simpleForm.Height = 200;
   simpleForm.Width = 200;
   simpleForm.Text = "This is the title";
   // Center the Form on the desktop
   simpleForm.StartPosition = FormStartPosition.CenterScreen;
   simpleForm.Visible = true;
   Application.Run(simpleForm);
 }

}

      </source>


Set ResizeRedraw property

<source lang="csharp">

using System; using System.Drawing; using System.Windows.Forms;

class RandomClearResizeRedraw: Form {

    public static void Main()      
    {
         Application.Run(new RandomClearResizeRedraw());
    }
    public RandomClearResizeRedraw()      
    {
         ResizeRedraw = true;
    }
    protected override void OnPaint(PaintEventArgs pea)
    {
         Graphics graphics = pea.Graphics;
         Random   rand = new Random();
  
         graphics.Clear(Color.FromArgb(rand.Next(256),
                                   rand.Next(256),
                                   rand.Next(256)));
    }

}

</source>


Simple form

<source lang="csharp"> /* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794

  • /

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace FormSample {

 /// <summary>
 /// Summary description for Form1.
 /// </summary>
 public class FormSample : System.Windows.Forms.Form
 {
   /// <summary>
   /// Required designer variable.
   /// </summary>
   private System.ruponentModel.Container components = null;
   public FormSample()
   {
     //
     // Required for Windows Form Designer support
     //
     InitializeComponent();
     //
     // TODO: Add any constructor code after InitializeComponent call
     //
   }
   /// <summary>
   /// Clean up any resources being used.
   /// </summary>
   protected override void Dispose( bool disposing )
   {
     if( disposing )
     {
       if (components != null) 
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   #region Windows Form Designer generated code
   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {
     // 
     // FormSample
     // 
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Name = "Form1";
     this.Text = "Form1";
   }
   #endregion
   /// <summary>
   /// The main entry point for the application.
   /// </summary>
   [STAThread]
   static void Main() 
   {
     Application.Run(new FormSample());
   }
 }

}


      </source>


Simplest form code: set window title

<source lang="csharp"> public class MyForm : System.Windows.Forms.Form{

 public MyForm(){
   Text = "Hello World";
 }
 public static void Main() {
   System.Windows.Forms.Application.Run(new MyForm());
 }

}


      </source>


Use Font from Form to paint string on a form

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms; class InheritHelloWorld : Form {

   public static void Main() {
       Application.Run(new InheritHelloWorld());
   }
   public InheritHelloWorld() {
       Text = "Inherit " + Text;
   }
   protected override void OnPaint(PaintEventArgs pea) {
       Graphics graphics = pea.Graphics;
       graphics.DrawString("Hello from InheritHelloWorld!",
                       Font, Brushes.Black, 0, 100);
   }

}

</source>


Windows Forms Getting Started

<source lang="csharp"> namespace DiskDiff {

   using System;
   using System.Drawing;
   using System.Collections;
   using System.ruponentModel;
   using System.Windows.Forms;
   using System.Data;
   
   public class DiskDiff : System.Windows.Forms.Form
   {
       private System.ruponentModel.Container components;
       
       public DiskDiff()
       {
           InitializeComponent();
       }
       
       private void InitializeComponent()
       {
           this.ruponents = new System.ruponentModel.Container();
           this.Size = new System.Drawing.Size(300,300);
           this.Text = "Form1";
       }
       
       public static void Main(string[] args) 
       {
           Application.Run(new DiskDiff());
       }
   }

}

      </source>