Csharp/C Sharp by API/System.Windows.Forms/Button

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Версия от 15:09, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Button.Anchor

<source lang="csharp">

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

class TwoButtonsAnchor: Form {

    public static void Main()
    {
         Application.Run(new TwoButtonsAnchor());
    }
    public TwoButtonsAnchor()
    {
         ResizeRedraw = true;
  
         int cxBtn = 5 * Font.Height;
         int cyBtn = 2 * Font.Height;
         int dxBtn =     Font.Height;
  
         Button btn = new Button();
         btn.Parent   = this;
         btn.Text     = "&Larger";
         btn.Location = new Point(dxBtn, dxBtn);
         btn.Size     = new Size(cxBtn, cyBtn);
         btn.Click   += new EventHandler(ButtonLargerOnClick);
         
         btn = new Button();
         btn.Parent   = this;
         btn.Text     = "&Smaller";
         btn.Location = new Point(ClientSize.Width  - cxBtn - dxBtn,
                                  ClientSize.Height - cyBtn - dxBtn);
         btn.Size     = new Size(cxBtn, cyBtn);
         btn.Anchor   = AnchorStyles.Right | AnchorStyles.Bottom;
         btn.Click   += new EventHandler(ButtonSmallerOnClick);
    }
    void ButtonLargerOnClick(object obj, EventArgs ea)
    {
         Console.WriteLine("large");
    }
    void ButtonSmallerOnClick(object obj, EventArgs ea)
    {
       Console.WriteLine("small");
    }

}

 </source>


Button.Click

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

 private Button btnClose;
 private Button btnApp;
 protected Label lbl;
 public BaseForm()
 {
   btnClose = new Button();
   btnClose.Location = new Point(25,100);
   btnClose.Size = new Size(100,25);
   btnClose.Text = "&Close";
   btnClose.Click += new System.EventHandler(btnClose_Click);
   btnApp = new Button();
   btnApp.Location = new Point(200,100);
   btnApp.Size = new Size(150,25);
   btnApp.Text = "&Base Application";
   btnApp.Click += new System.EventHandler(btnApp_Click);
   lbl = new Label();
   lbl.Location = new Point(25,25);
   lbl.Size = new Size(100,25);
   lbl.Text = "This label on BaseForm";
   Controls.AddRange(new Control[]{lbl, btnClose, btnApp});
 }
 static void Main() 
 {
   Application.Run(new BaseForm());
 }
 private void btnClose_Click(object sender, EventArgs e)
 {
   Application.Exit();
 }
 private void btnApp_Click(object sender, EventArgs e)
 {
   MessageBox.Show("This is the Base application.");
   SomeMethod();
 }
 protected virtual void SomeMethod()
 {
   MessageBox.Show("This is SomeMethod called from BaseForm.");
 }

} public class InheritedForm : BaseForm {

 private Button btn;
 public InheritedForm()
 {
   btn = new Button();
   btn.Location = new Point(25,150);
   btn.Size = new Size(125,25);
   btn.Text = "C&lose on Inherited";
   btn.Click += new System.EventHandler(btn_Click);
   Controls.Add(btn);
   lbl.Text = "Now from InheritedForm";
   BackColor = Color.LightBlue;
 }
 static void Main() 
 {
   Application.Run(new InheritedForm());
 }
 private void btn_Click(object sender, EventArgs e)
 {
   Application.Exit();
 }
 protected override void SomeMethod()
 {
   MessageBox.Show("This is the overridden SomeMethod called " + 
                   "from InheritedForm.");
 }

}


 </source>


Button.DialogResult

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

class SimplerDialog: Form {

    public static void Main()
    {
         Application.Run(new SimplerDialog());
    }
    public SimplerDialog()
    {
         Text = "Simpler Dialog";
  
         Menu = new MainMenu();
         Menu.MenuItems.Add("&Dialog!", new EventHandler(MenuOnClick));
    }
    void MenuOnClick(object obj, EventArgs ea)
    {
         SimplerDialogBox dlg = new SimplerDialogBox();
         DialogResult     dr  = dlg.ShowDialog();
  
         Console.WriteLine(dr);
    }

} class SimplerDialogBox: Form {

    public SimplerDialogBox()
    {
         Text = "Simpler Dialog Box";
  
         FormBorderStyle = FormBorderStyle.FixedDialog;
         ControlBox      = false;
         MaximizeBox     = false;
         MinimizeBox     = false;
         ShowInTaskbar   = false;
  
         Button btn = new Button();
         btn.Parent   = this;
         btn.Text     = "OK";
         btn.Location = new Point(50, 50);
         btn.Size     = new Size (10 * Font.Height, 2 * Font.Height);
         btn.DialogResult = DialogResult.OK;
  
         btn = new Button();
         btn.Parent   = this;
         btn.Text     = "Cancel";
         btn.Location = new Point(50, 100);
         btn.Size     = new Size (10 * Font.Height, 2 * Font.Height);
         btn.DialogResult = DialogResult.Cancel;
    }

}

 </source>


Button.Dock

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

class TwoButtonsDock: Form {

    public static void Main()
    {
         Application.Run(new TwoButtonsDock());
    }
    public TwoButtonsDock()
    {
         ResizeRedraw = true;
  
         Button btn = new Button();
         btn.Parent = this;
         btn.Text   = "&Larger";
         btn.Height = 2 * Font.Height;
         btn.Dock   = DockStyle.Top;
         btn.Click += new EventHandler(ButtonLargerOnClick);
         
         btn = new Button();
         btn.Parent = this;
         btn.Text   = "&Smaller";
         btn.Height = 2 * Font.Height;
         btn.Dock   = DockStyle.Bottom;
         btn.Click += new EventHandler(ButtonSmallerOnClick);
    }
    void ButtonLargerOnClick(object obj, EventArgs ea)
    {
         Console.WriteLine("large");
    }
    void ButtonSmallerOnClick(object obj, EventArgs ea)
    {
         Console.WriteLine("small");
    }

}

 </source>


Button.FlatStyle

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

class ButtonStyles: Form {

    public static void Main()
    {
         Application.Run(new ButtonStyles());
    }
    public ButtonStyles()
    {
         int y = 0;
  
         foreach (FlatStyle fs in Enum.GetValues(typeof(FlatStyle)))
         {
              Button btn    = new Button();
              btn.Parent    = this;
              btn.FlatStyle = fs;
              btn.Text      = fs.ToString();
              btn.Location  = new Point(50, y += 50);
         }
    }

}


 </source>


Button.Font

<source lang="csharp">

   using System;
 using System.Drawing;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 public class ButtonForm : System.Windows.Forms.Form
 {
   private System.Windows.Forms.Button btnImage;
   private System.Windows.Forms.Button btnStandard;
   private System.Windows.Forms.Button btnPopup;
   private System.Windows.Forms.Button btnFlat;
   // Hold the current text alignment
   ContentAlignment currAlignment = ContentAlignment.MiddleCenter;
   int currEnumPos = 0;
   
   public ButtonForm()
   {
     InitializeComponent();
     // Set btnStandard as default accept.
     this.AcceptButton = btnStandard;
     CenterToScreen();
   }
   private void InitializeComponent()
   {
     this.btnStandard = new System.Windows.Forms.Button();
     this.btnFlat = new System.Windows.Forms.Button();
     this.btnImage = new System.Windows.Forms.Button();
     this.btnPopup = new System.Windows.Forms.Button();
     this.SuspendLayout();
     // 
     // btnStandard
     // 
     this.btnStandard.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
     this.btnStandard.ForeColor = System.Drawing.SystemColors.ControlText;
     this.btnStandard.Location = new System.Drawing.Point(16, 80);
     this.btnStandard.Name = "btnStandard";
     this.btnStandard.Size = new System.Drawing.Size(312, 88);
     this.btnStandard.TabIndex = 2;
     this.btnStandard.Text = "I am a standard button";
     this.btnStandard.Click += new System.EventHandler(this.btnStandard_Click);
     // 
     // btnFlat
     // 
     this.btnFlat.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
     this.btnFlat.ForeColor = System.Drawing.Color.Blue;
     this.btnFlat.Location = new System.Drawing.Point(16, 24);
     this.btnFlat.Name = "btnFlat";
     this.btnFlat.Size = new System.Drawing.Size(152, 32);
     this.btnFlat.TabIndex = 0;
     this.btnFlat.Text = "I am flat...";
     // 
     // btnImage
     // 
     this.btnImage.Font = new System.Drawing.Font("Microsoft Sans Serif", 20F, System.Drawing.FontStyle.Bold);
     this.btnImage.Image = new Bitmap("winter.jpg");
     this.btnImage.Location = new System.Drawing.Point(16, 192);
     this.btnImage.Name = "btnImage";
     this.btnImage.Size = new System.Drawing.Size(312, 72);
     this.btnImage.TabIndex = 3;
     this.btnImage.Text = "Image Button";
     this.btnImage.TextAlign = System.Drawing.ContentAlignment.TopCenter;
     // 
     // btnPopup
     // 
     this.btnPopup.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
     this.btnPopup.ForeColor = System.Drawing.SystemColors.ControlText;
     this.btnPopup.Location = new System.Drawing.Point(176, 24);
     this.btnPopup.Name = "btnPopup";
     this.btnPopup.Size = new System.Drawing.Size(152, 32);
     this.btnPopup.TabIndex = 1;
     this.btnPopup.Text = "I am a Popup!";
     // 
     // ButtonForm
     // 
     this.AcceptButton = this.btnStandard;
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(340, 269);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.btnImage,
                                     this.btnStandard,
                                     this.btnPopup,
                                     this.btnFlat});
     this.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
     this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
     this.Name = "ButtonForm";
     this.Text = "Buttons";
     this.ResumeLayout(false);
   }
   
   protected void btnStandard_Click (object sender, System.EventArgs e)
   {      
     Array values = Enum.GetValues(currAlignment.GetType());
   
     currEnumPos++;
     if(currEnumPos >= values.Length)
       currEnumPos = 0;
     
     currAlignment = (ContentAlignment)ContentAlignment.Parse(currAlignment.GetType(), 
             values.GetValue(currEnumPos).ToString());
     btnStandard.TextAlign = currAlignment;
     btnStandard.Text = currAlignment.ToString();
   }
   public static void Main(string[] args) 
   {
     Application.Run(new ButtonForm());
   }
 }
  
   
 </source>


Button.Image

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

class BitmapButtons: Form {

    int    cxBtn, cyBtn, dxBtn;
    Button btnLarger, btnSmaller;
  
    public static void Main()
    {
         Application.Run(new BitmapButtons());
    }
    public BitmapButtons()
    {
         ResizeRedraw = true;
  
         dxBtn = Font.Height;
         btnLarger = new Button();
         btnLarger.Parent = this;
         btnLarger.Image  = new Bitmap(GetType(), "LargerButton.bmp") ;
  
         cxBtn = btnLarger.Image.Width  + 8;
         cyBtn = btnLarger.Image.Height + 8;
  
         btnLarger.Size   = new Size(cxBtn, cyBtn);
         btnLarger.Click += new EventHandler(ButtonLargerOnClick);
  
         btnSmaller = new Button();
         btnSmaller.Parent = this;
         btnSmaller.Image  = new Bitmap(GetType(), "SmallerButton.bmp");
         btnSmaller.Size   = new Size(cxBtn, cyBtn);
         btnSmaller.Click += new EventHandler(ButtonSmallerOnClick);
  
         OnResize(EventArgs.Empty);
    }
    protected override void OnResize(EventArgs ea)
    {
         base.OnResize(ea);
  
         btnLarger.Location = new Point(ClientSize.Width / 2 - cxBtn - dxBtn / 2,
                                 (ClientSize.Height - cyBtn) / 2);
         btnSmaller.Location = new Point(ClientSize.Width / 2 + dxBtn / 2,
                                 (ClientSize.Height - cyBtn) / 2);
    }
    void ButtonLargerOnClick(object obj, EventArgs ea)
    {
         Left   = 50;
         Top    = 50;
         Width  = 50;
         Height = 50;
    }
    void ButtonSmallerOnClick(object obj, EventArgs ea)
    {
         Left   = 200;
         Top    = 200;
         Width  = 20;
         Height = 20;
    }

}


 </source>


Button.Location

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

 private Button btnShow = new Button();
 private Label lbl = new Label();
 int xButtonSize, yButtonSize;
 public ControlDynamicSizeLocation()
 {
   btnShow.Parent = this;
   btnShow.Text = "Show Button Properties";
   Size = new Size(400,400);
   xButtonSize = (int)(Font.Height * .75) * btnShow.Text.Length;
   yButtonSize = Font.Height * 2;
   btnShow.Size = new Size(xButtonSize, yButtonSize);
   btnShow.Click += new System.EventHandler(btnShow_Click);
   lbl.Text = "Control Size and Location - Dynamic";
   lbl.AutoSize = true;
   lbl.Parent = this;
   OnResize(EventArgs.Empty);
 }
 protected override void OnResize(EventArgs e)
 {
   base.OnResize(e);
   int xPosition = (int)(this.ClientSize.Width / 2) - (int)(xButtonSize / 2);
   int yPosition = (int)(this.ClientSize.Height / 2) - (int)(yButtonSize / 2);
   btnShow.Location = new Point(xPosition, yPosition);
 }
 static void Main() 
 {
   Application.Run(new ControlDynamicSizeLocation());
 }
 private void btnShow_Click(object sender, EventArgs e)
 {
   Console.WriteLine("Button Bottom:" + btnShow.Bottom.ToString());
   Console.WriteLine("Button Top:" + btnShow.Top.ToString() );
   Console.WriteLine("Button Left:" + btnShow.Left.ToString() );
   Console.WriteLine("Button Right:" + btnShow.Right.ToString() );
   Console.WriteLine("Button Location:" + btnShow.Location.ToString() );
   Console.WriteLine("Button Width:" + btnShow.Width.ToString() );
   Console.WriteLine("Button Height:" + btnShow.Height.ToString() );
   Console.WriteLine("Button Size:" + btnShow.Size.ToString() );
   Console.WriteLine("Button ClientSize:" + btnShow.ClientSize.ToString() );
   Console.WriteLine("Font:" + btnShow.Font.ToString());
 }

}


 </source>


Button.MouseDown

<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 Form1 : Form {

   private System.Windows.Forms.GroupBox GroupBox1;
   private System.Windows.Forms.Label Label4;
   private System.Windows.Forms.Label Label1;
   private System.Windows.Forms.PictureBox pic;
   private System.Windows.Forms.TextBox txt;
   private System.Windows.Forms.Button cmd;
   private System.Windows.Forms.Label Label2;
   private System.Windows.Forms.Label Label3;
   private System.Windows.Forms.ListBox eventLogList;
   public Form1() {
       InitializeComponent();
   }
   private void Log(String data)
   {
       eventLogList.Items.Add(data);
       int itemsPerPage = (int)(eventLogList.Height / eventLogList.ItemHeight);
       eventLogList.TopIndex = eventLogList.Items.Count - itemsPerPage;
   }
   private void txt_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
   {
       Log("Key Down: " + e.KeyCode.ToString() + e.KeyValue.ToString());
   }
   private void txt_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
   {
       Log("Key Press: " + e.KeyChar.ToString());
   }
   private void txt_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
   {
       Log("Key Up: " + e.KeyCode.ToString() + e.KeyValue.ToString() + " Text is: " + txt.Text);
   }
   private void txt_TextChanged(object sender, System.EventArgs e)
   {
       Log("Changed: " + " Text is: " + txt.Text);
   }
   private void pic_MouseEnter(object sender, System.EventArgs e)
   {
       Log("Mouse Enter");
   }
   private void pic_MouseHover(object sender, System.EventArgs e)
   {
       Log("Mouse Hover");
   }
   private void pic_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
   {
       Log("Mouse Down: X=" + e.X.ToString() + " Y=" + e.Y.ToString() + " Button=" + e.Button.ToString());
   }
   private void pic_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
   {
       Log("Mouse Up: X=" + e.X.ToString() + " Y=" + e.Y.ToString() + " Button=" + e.Button.ToString());
   }
   private void pic_Click(object sender, System.EventArgs e)
   {
       Log("Click");
   }
   private void pic_DoubleClick(object sender, System.EventArgs e)
   {
       Log("Double Click");
   }
   private void pic_MouseLeave(object sender, System.EventArgs e)
   {
       Log("Mouse Leave");
   }
   private void InitializeComponent()
   {
       this.GroupBox1 = new System.Windows.Forms.GroupBox();
       this.Label4 = new System.Windows.Forms.Label();
       this.Label1 = new System.Windows.Forms.Label();
       this.pic = new System.Windows.Forms.PictureBox();
       this.txt = new System.Windows.Forms.TextBox();
       this.cmd = new System.Windows.Forms.Button();
       this.Label2 = new System.Windows.Forms.Label();
       this.Label3 = new System.Windows.Forms.Label();
       this.eventLogList = new System.Windows.Forms.ListBox();
       this.GroupBox1.SuspendLayout();
       ((System.ruponentModel.ISupportInitialize)(this.pic)).BeginInit();
       this.SuspendLayout();
       // 
       // GroupBox1
       // 
       this.GroupBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                   | System.Windows.Forms.AnchorStyles.Right)));
       this.GroupBox1.Controls.Add(this.Label4);
       this.GroupBox1.Controls.Add(this.Label1);
       this.GroupBox1.Controls.Add(this.pic);
       this.GroupBox1.Controls.Add(this.txt);
       this.GroupBox1.Controls.Add(this.cmd);
       this.GroupBox1.Controls.Add(this.Label2);
       this.GroupBox1.FlatStyle = System.Windows.Forms.FlatStyle.System;
       this.GroupBox1.Location = new System.Drawing.Point(7, 0);
       this.GroupBox1.Name = "GroupBox1";
       this.GroupBox1.Size = new System.Drawing.Size(384, 148);
       this.GroupBox1.TabIndex = 12;
       this.GroupBox1.TabStop = false;
       // 
       // Label4
       // 
       this.Label4.Location = new System.Drawing.Point(92, 108);
       this.Label4.Name = "Label4";
       this.Label4.Size = new System.Drawing.Size(56, 16);
       this.Label4.TabIndex = 5;
       this.Label4.Text = "And here:";
       // 
       // Label1
       // 
       this.Label1.Location = new System.Drawing.Point(6, 24);
       this.Label1.Name = "Label1";
       this.Label1.Size = new System.Drawing.Size(144, 16);
       this.Label1.TabIndex = 2;
       this.Label1.Text = "Test keyboard events here:";
       // 
       // pic
       // 
       this.pic.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
       this.pic.Location = new System.Drawing.Point(156, 48);
       this.pic.Name = "pic";
       this.pic.Size = new System.Drawing.Size(192, 48);
       this.pic.TabIndex = 3;
       this.pic.TabStop = false;
       this.pic.DoubleClick += new System.EventHandler(this.pic_DoubleClick);
       this.pic.Click += new System.EventHandler(this.pic_Click);
       this.pic.MouseHover += new System.EventHandler(this.pic_MouseHover);
       this.pic.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pic_MouseUp);
       this.pic.MouseEnter += new System.EventHandler(this.pic_MouseEnter);
       this.pic.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pic_MouseDown);
       // 
       // txt
       // 
       this.txt.Location = new System.Drawing.Point(156, 20);
       this.txt.Name = "txt";
       this.txt.Size = new System.Drawing.Size(192, 21);
       this.txt.TabIndex = 1;
       this.txt.KeyUp += new System.Windows.Forms.KeyEventHandler(this.txt_KeyUp);
       this.txt.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txt_KeyPress);
       this.txt.TextChanged += new System.EventHandler(this.txt_TextChanged);
       this.txt.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txt_KeyDown);
       // 
       // cmd
       // 
       this.cmd.FlatStyle = System.Windows.Forms.FlatStyle.System;
       this.cmd.Location = new System.Drawing.Point(156, 100);
       this.cmd.Name = "cmd";
       this.cmd.Size = new System.Drawing.Size(88, 28);
       this.cmd.TabIndex = 4;
       this.cmd.Text = "Button1";
       this.cmd.MouseLeave += new System.EventHandler(this.pic_MouseLeave);
       this.cmd.Click += new System.EventHandler(this.pic_Click);
       this.cmd.MouseEnter += new System.EventHandler(this.pic_MouseEnter);
       this.cmd.MouseHover += new System.EventHandler(this.pic_MouseHover);
       this.cmd.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pic_MouseUp);
       this.cmd.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pic_MouseDown);
       // 
       // Label2
       // 
       this.Label2.Location = new System.Drawing.Point(20, 52);
       this.Label2.Name = "Label2";
       this.Label2.Size = new System.Drawing.Size(128, 16);
       this.Label2.TabIndex = 2;
       this.Label2.Text = "Test mouse events here:";
       // 
       // Label3
       // 
       this.Label3.Location = new System.Drawing.Point(23, 100);
       this.Label3.Name = "Label3";
       this.Label3.Size = new System.Drawing.Size(64, 24);
       this.Label3.TabIndex = 11;
       this.Label3.Text = "Label3";
       // 
       // eventLogList
       // 
       this.eventLogList.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                   | System.Windows.Forms.AnchorStyles.Left)
                   | System.Windows.Forms.AnchorStyles.Right)));
       this.eventLogList.FormattingEnabled = true;
       this.eventLogList.IntegralHeight = false;
       this.eventLogList.Location = new System.Drawing.Point(7, 156);
       this.eventLogList.Name = "eventLogList";
       this.eventLogList.Size = new System.Drawing.Size(384, 212);
       this.eventLogList.TabIndex = 10;
       // 
       // Form1
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(399, 374);
       this.Controls.Add(this.GroupBox1);
       this.Controls.Add(this.Label3);
       this.Controls.Add(this.eventLogList);
       this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.Name = "Form1";
       this.Text = "Event Tracker";
       this.GroupBox1.ResumeLayout(false);
       this.GroupBox1.PerformLayout();
       ((System.ruponentModel.ISupportInitialize)(this.pic)).EndInit();
       this.ResumeLayout(false);
   }
   [STAThread]
   static void Main()
   {
       Application.EnableVisualStyles();
       Application.Run(new Form1());
   }

}


 </source>


Button.MouseEnter

<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 Form1 : Form {

   private System.Windows.Forms.GroupBox GroupBox1;
   private System.Windows.Forms.Label Label4;
   private System.Windows.Forms.Label Label1;
   private System.Windows.Forms.PictureBox pic;
   private System.Windows.Forms.TextBox txt;
   private System.Windows.Forms.Button cmd;
   private System.Windows.Forms.Label Label2;
   private System.Windows.Forms.Label Label3;
   private System.Windows.Forms.ListBox eventLogList;
   public Form1() {
       InitializeComponent();
   }
   private void Log(String data)
   {
       eventLogList.Items.Add(data);
       int itemsPerPage = (int)(eventLogList.Height / eventLogList.ItemHeight);
       eventLogList.TopIndex = eventLogList.Items.Count - itemsPerPage;
   }
   private void txt_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
   {
       Log("Key Down: " + e.KeyCode.ToString() + e.KeyValue.ToString());
   }
   private void txt_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
   {
       Log("Key Press: " + e.KeyChar.ToString());
   }
   private void txt_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
   {
       Log("Key Up: " + e.KeyCode.ToString() + e.KeyValue.ToString() + " Text is: " + txt.Text);
   }
   private void txt_TextChanged(object sender, System.EventArgs e)
   {
       Log("Changed: " + " Text is: " + txt.Text);
   }
   private void pic_MouseEnter(object sender, System.EventArgs e)
   {
       Log("Mouse Enter");
   }
   private void pic_MouseHover(object sender, System.EventArgs e)
   {
       Log("Mouse Hover");
   }
   private void pic_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
   {
       Log("Mouse Down: X=" + e.X.ToString() + " Y=" + e.Y.ToString() + " Button=" + e.Button.ToString());
   }
   private void pic_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
   {
       Log("Mouse Up: X=" + e.X.ToString() + " Y=" + e.Y.ToString() + " Button=" + e.Button.ToString());
   }
   private void pic_Click(object sender, System.EventArgs e)
   {
       Log("Click");
   }
   private void pic_DoubleClick(object sender, System.EventArgs e)
   {
       Log("Double Click");
   }
   private void pic_MouseLeave(object sender, System.EventArgs e)
   {
       Log("Mouse Leave");
   }
   private void InitializeComponent()
   {
       this.GroupBox1 = new System.Windows.Forms.GroupBox();
       this.Label4 = new System.Windows.Forms.Label();
       this.Label1 = new System.Windows.Forms.Label();
       this.pic = new System.Windows.Forms.PictureBox();
       this.txt = new System.Windows.Forms.TextBox();
       this.cmd = new System.Windows.Forms.Button();
       this.Label2 = new System.Windows.Forms.Label();
       this.Label3 = new System.Windows.Forms.Label();
       this.eventLogList = new System.Windows.Forms.ListBox();
       this.GroupBox1.SuspendLayout();
       ((System.ruponentModel.ISupportInitialize)(this.pic)).BeginInit();
       this.SuspendLayout();
       // 
       // GroupBox1
       // 
       this.GroupBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                   | System.Windows.Forms.AnchorStyles.Right)));
       this.GroupBox1.Controls.Add(this.Label4);
       this.GroupBox1.Controls.Add(this.Label1);
       this.GroupBox1.Controls.Add(this.pic);
       this.GroupBox1.Controls.Add(this.txt);
       this.GroupBox1.Controls.Add(this.cmd);
       this.GroupBox1.Controls.Add(this.Label2);
       this.GroupBox1.FlatStyle = System.Windows.Forms.FlatStyle.System;
       this.GroupBox1.Location = new System.Drawing.Point(7, 0);
       this.GroupBox1.Name = "GroupBox1";
       this.GroupBox1.Size = new System.Drawing.Size(384, 148);
       this.GroupBox1.TabIndex = 12;
       this.GroupBox1.TabStop = false;
       // 
       // Label4
       // 
       this.Label4.Location = new System.Drawing.Point(92, 108);
       this.Label4.Name = "Label4";
       this.Label4.Size = new System.Drawing.Size(56, 16);
       this.Label4.TabIndex = 5;
       this.Label4.Text = "And here:";
       // 
       // Label1
       // 
       this.Label1.Location = new System.Drawing.Point(6, 24);
       this.Label1.Name = "Label1";
       this.Label1.Size = new System.Drawing.Size(144, 16);
       this.Label1.TabIndex = 2;
       this.Label1.Text = "Test keyboard events here:";
       // 
       // pic
       // 
       this.pic.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
       this.pic.Location = new System.Drawing.Point(156, 48);
       this.pic.Name = "pic";
       this.pic.Size = new System.Drawing.Size(192, 48);
       this.pic.TabIndex = 3;
       this.pic.TabStop = false;
       this.pic.DoubleClick += new System.EventHandler(this.pic_DoubleClick);
       this.pic.Click += new System.EventHandler(this.pic_Click);
       this.pic.MouseHover += new System.EventHandler(this.pic_MouseHover);
       this.pic.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pic_MouseUp);
       this.pic.MouseEnter += new System.EventHandler(this.pic_MouseEnter);
       this.pic.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pic_MouseDown);
       // 
       // txt
       // 
       this.txt.Location = new System.Drawing.Point(156, 20);
       this.txt.Name = "txt";
       this.txt.Size = new System.Drawing.Size(192, 21);
       this.txt.TabIndex = 1;
       this.txt.KeyUp += new System.Windows.Forms.KeyEventHandler(this.txt_KeyUp);
       this.txt.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txt_KeyPress);
       this.txt.TextChanged += new System.EventHandler(this.txt_TextChanged);
       this.txt.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txt_KeyDown);
       // 
       // cmd
       // 
       this.cmd.FlatStyle = System.Windows.Forms.FlatStyle.System;
       this.cmd.Location = new System.Drawing.Point(156, 100);
       this.cmd.Name = "cmd";
       this.cmd.Size = new System.Drawing.Size(88, 28);
       this.cmd.TabIndex = 4;
       this.cmd.Text = "Button1";
       this.cmd.MouseLeave += new System.EventHandler(this.pic_MouseLeave);
       this.cmd.Click += new System.EventHandler(this.pic_Click);
       this.cmd.MouseEnter += new System.EventHandler(this.pic_MouseEnter);
       this.cmd.MouseHover += new System.EventHandler(this.pic_MouseHover);
       this.cmd.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pic_MouseUp);
       this.cmd.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pic_MouseDown);
       // 
       // Label2
       // 
       this.Label2.Location = new System.Drawing.Point(20, 52);
       this.Label2.Name = "Label2";
       this.Label2.Size = new System.Drawing.Size(128, 16);
       this.Label2.TabIndex = 2;
       this.Label2.Text = "Test mouse events here:";
       // 
       // Label3
       // 
       this.Label3.Location = new System.Drawing.Point(23, 100);
       this.Label3.Name = "Label3";
       this.Label3.Size = new System.Drawing.Size(64, 24);
       this.Label3.TabIndex = 11;
       this.Label3.Text = "Label3";
       // 
       // eventLogList
       // 
       this.eventLogList.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                   | System.Windows.Forms.AnchorStyles.Left)
                   | System.Windows.Forms.AnchorStyles.Right)));
       this.eventLogList.FormattingEnabled = true;
       this.eventLogList.IntegralHeight = false;
       this.eventLogList.Location = new System.Drawing.Point(7, 156);
       this.eventLogList.Name = "eventLogList";
       this.eventLogList.Size = new System.Drawing.Size(384, 212);
       this.eventLogList.TabIndex = 10;
       // 
       // Form1
       // 
       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(399, 374);
       this.Controls.Add(this.GroupBox1);
       this.Controls.Add(this.Label3);
       this.Controls.Add(this.eventLogList);
       this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
       this.Name = "Form1";
       this.Text = "Event Tracker";
       this.GroupBox1.ResumeLayout(false);
       this.GroupBox1.PerformLayout();
       ((System.ruponentModel.ISupportInitialize)(this.pic)).EndInit();
       this.ResumeLayout(false);
   }
   [STAThread]
   static void Main()
   {
       Application.EnableVisualStyles();
       Application.Run(new Form1());
   }

}


 </source>


Button.Parent

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

class TwoButtons: Form {

    readonly Button btnLarger, btnSmaller;
    readonly int    cxBtn, cyBtn, dxBtn;
  
    public static void Main()
    {
         Application.Run(new TwoButtons());
    }
    public TwoButtons()
    {
         ResizeRedraw = true;
  
         cxBtn = 200;
         cyBtn = 100;
         dxBtn = 12;
  
         btnLarger = new Button();
         btnLarger.Parent = this;
         btnLarger.Text   = "&Larger";
         btnLarger.Size   = new Size(cxBtn, cyBtn);
         btnLarger.Click += new EventHandler(ButtonOnClick);
  
         btnSmaller = new Button();
         btnSmaller.Parent = this;
         btnSmaller.Text   = "&Smaller";
         btnSmaller.Size   = new Size(cxBtn, cyBtn);
         btnSmaller.Click += new EventHandler(ButtonOnClick);
  
         OnResize(EventArgs.Empty);
    }
    protected override void OnResize(EventArgs ea)
    {
         base.OnResize(ea);
  
         btnLarger.Location =
                        new Point(ClientSize.Width / 2 - cxBtn - dxBtn / 2,
                                 (ClientSize.Height - cyBtn) / 2);
         btnSmaller.Location =
                        new Point(ClientSize.Width / 2 + dxBtn / 2,
                                 (ClientSize.Height - cyBtn) / 2);
    }
    void ButtonOnClick(object obj, EventArgs ea)
    {
         Button btn = (Button) obj;
  
         if (btn == btnLarger)
         {
              Left   -= (int)(0.1 * Width);
              Top    -= (int)(0.1 * Height);
              Width  += (int)(0.1 * Width);
              Height += (int)(0.1 * Height);
         }
         else
         {
              Left   += (int)(Width  / 22f);
              Top    += (int)(Height / 22f);
              Width  -= (int)(Width  / 11f);
              Height -= (int)(Height / 11f);
         }
    }

}


 </source>


Button.PerformClick()

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

 Button btn1;
 Button btn2;
 public ButtonEvent()
 {
       Size = new Size(200,100);
   btn1 = new Button();
   btn1.Parent = this;
   btn1.Text = "Button1";
   btn1.Location = new Point(10,10);
   btn1.Click += new System.EventHandler(btn1_Click);
   btn2 = new Button();
   btn2.Parent = this;
   btn2.Text = "Button2";
   btn2.Location = new Point(100,10);
   btn2.Click += new System.EventHandler(btn2_Click);
 }
 static void Main() 
 {
   Application.Run(new ButtonEvent());
 }
 private void btn1_Click(object sender, EventArgs e)
 {
   MessageBox.Show("Button1 clicked.");
   btn2.PerformClick();
 }
 private void btn2_Click(object sender, EventArgs e)
 {
   MessageBox.Show("Button2 clicked.");
 }

}

 </source>


Button.Size

<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 Form1 : Form {

   private System.Windows.Forms.Button button1;
 public Form1() {
       InitializeComponent();
 }
   private void InitializeComponent()
   {
       this.button1 = new System.Windows.Forms.Button();
       this.SuspendLayout();
       this.button1.Image = new Bitmap("winter.jpg");
       this.button1.ImageAlign = System.Drawing.ContentAlignment.TopRight;
       this.button1.Location = new System.Drawing.Point(12, 99);
       this.button1.Name = "button1";
       this.button1.Size = new System.Drawing.Size(132, 74);
       this.button1.TabIndex = 1;
       this.button1.Text = "button1";
       this.button1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
       this.button1.UseVisualStyleBackColor = true;

       this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
       this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
       this.ClientSize = new System.Drawing.Size(299, 271);
       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 = "ImagesInCommonControls";
       this.Text = "ImagesInCommonControls";
       this.ResumeLayout(false);
   }
 [STAThread]
 static void Main()
 {
   Application.EnableVisualStyles();
   Application.Run(new Form1());
 }

}


 </source>


Button.Text

<source lang="csharp">


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

public class MainForm : Form {

   public static void Main()
   {
       MainForm MyForm = new MainForm();
  
       Application.Run(MyForm);
   }
  
   public MainForm()
   {
       Button MyButton = new Button();
       
       Text = "Button Test";
       MyButton.Location = new Point(25, 25);
       MyButton.Text = "Click Me";
       MyButton.Click += new EventHandler(MyButtonClicked);
       Controls.Add(MyButton);
   }
   
   public void MyButtonClicked(object sender, EventArgs Arguments)
   {
       MessageBox.Show("The button has been clicked.");
   }

}


 </source>


Button.TextAlign

<source lang="csharp">

   using System;
 using System.Drawing;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 public class ButtonForm : System.Windows.Forms.Form
 {
   private System.Windows.Forms.Button btnImage;
   private System.Windows.Forms.Button btnStandard;
   private System.Windows.Forms.Button btnPopup;
   private System.Windows.Forms.Button btnFlat;
   // Hold the current text alignment
   ContentAlignment currAlignment = ContentAlignment.MiddleCenter;
   int currEnumPos = 0;
   
   public ButtonForm()
   {
     InitializeComponent();
     // Set btnStandard as default accept.
     this.AcceptButton = btnStandard;
     CenterToScreen();
   }
   private void InitializeComponent()
   {
     this.btnStandard = new System.Windows.Forms.Button();
     this.btnFlat = new System.Windows.Forms.Button();
     this.btnImage = new System.Windows.Forms.Button();
     this.btnPopup = new System.Windows.Forms.Button();
     this.SuspendLayout();
     // 
     // btnStandard
     // 
     this.btnStandard.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
     this.btnStandard.ForeColor = System.Drawing.SystemColors.ControlText;
     this.btnStandard.Location = new System.Drawing.Point(16, 80);
     this.btnStandard.Name = "btnStandard";
     this.btnStandard.Size = new System.Drawing.Size(312, 88);
     this.btnStandard.TabIndex = 2;
     this.btnStandard.Text = "I am a standard button";
     this.btnStandard.Click += new System.EventHandler(this.btnStandard_Click);
     // 
     // btnFlat
     // 
     this.btnFlat.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
     this.btnFlat.ForeColor = System.Drawing.Color.Blue;
     this.btnFlat.Location = new System.Drawing.Point(16, 24);
     this.btnFlat.Name = "btnFlat";
     this.btnFlat.Size = new System.Drawing.Size(152, 32);
     this.btnFlat.TabIndex = 0;
     this.btnFlat.Text = "I am flat...";
     // 
     // btnImage
     // 
     this.btnImage.Font = new System.Drawing.Font("Microsoft Sans Serif", 20F, System.Drawing.FontStyle.Bold);
     this.btnImage.Image = new Bitmap("winter.jpg");
     this.btnImage.Location = new System.Drawing.Point(16, 192);
     this.btnImage.Name = "btnImage";
     this.btnImage.Size = new System.Drawing.Size(312, 72);
     this.btnImage.TabIndex = 3;
     this.btnImage.Text = "Image Button";
     this.btnImage.TextAlign = System.Drawing.ContentAlignment.TopCenter;
     // 
     // btnPopup
     // 
     this.btnPopup.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
     this.btnPopup.ForeColor = System.Drawing.SystemColors.ControlText;
     this.btnPopup.Location = new System.Drawing.Point(176, 24);
     this.btnPopup.Name = "btnPopup";
     this.btnPopup.Size = new System.Drawing.Size(152, 32);
     this.btnPopup.TabIndex = 1;
     this.btnPopup.Text = "I am a Popup!";
     // 
     // ButtonForm
     // 
     this.AcceptButton = this.btnStandard;
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(340, 269);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.btnImage,
                                     this.btnStandard,
                                     this.btnPopup,
                                     this.btnFlat});
     this.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
     this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
     this.Name = "ButtonForm";
     this.Text = "Buttons";
     this.ResumeLayout(false);
   }
   
   protected void btnStandard_Click (object sender, System.EventArgs e)
   {      
     Array values = Enum.GetValues(currAlignment.GetType());
   
     currEnumPos++;
     if(currEnumPos >= values.Length)
       currEnumPos = 0;
     
     currAlignment = (ContentAlignment)ContentAlignment.Parse(currAlignment.GetType(), 
             values.GetValue(currEnumPos).ToString());
     btnStandard.TextAlign = currAlignment;
     btnStandard.Text = currAlignment.ToString();
   }
   public static void Main(string[] args) 
   {
     Application.Run(new ButtonForm());
   }
 }



 </source>


Button.Top

<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>


new Button()

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

 private TextBox firstNameBox = new TextBox(); 
 private Button btnShowControls = new Button();
 
 public FormHand()
 {
   firstNameBox.Text = "Text";
   firstNameBox.Size = new Size(150, 50);
   firstNameBox.Location = new Point(10, 10);
   this.Controls.Add(firstNameBox);
   btnShowControls.Text = "Click Me";
   btnShowControls.Size = new Size(90, 90);
   btnShowControls.Location = new Point(10, 70);
   btnShowControls.Click += new EventHandler(btnShowControls_Clicked);
   this.Controls.Add(btnShowControls);
   CenterToScreen();
 }
 protected void btnShowControls_Clicked(object sender, EventArgs e)
 {
   Control.ControlCollection coll = this.Controls;
   foreach(Control c in coll)
   {
     if(c != null)
       Console.WriteLine(string.Format("Index: {0}, Text: {1}\n", coll.GetChildIndex(c, false), c.Text));
   }
   MessageBox.Show("Message", "Index and Text values for each control");
 }
   public static int Main(string[] args)
   {
   Application.Run(new FormHand());
   return 0;
   }

}


 </source>