Csharp/CSharp Tutorial/GUI Windows Forms/Form Properties

Содержание

1 Center Form to the screen
2 Change Form ClientSize
3 Form Bounds Setting
4 Form Opacity setting
5 Form.StartPosition
6 Form with Maximize Box
7 Form without MinimizeBox and MaximizedBox
8 Resize redraw form: get/set Form style
9 Set form background color
10 Set FormBorderStyle
11 Set form caption
12 Set Form Height
13 Set Form size
14 Set Form Width
15 Use Form.DialogResult

Center Form to the screen

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class CenterForm : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components;
  public CenterForm()
  {
    InitializeComponent();
    CenterToScreen();
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }
  private void InitializeComponent()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(292, 273);
    this.Text = "DataGridExample";
    this.Resize += new System.EventHandler(this.CenterForm_Resize);
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.CenterForm_Paint);
    }
  [STAThread]
  static void Main() 
  {
    Application.Run(new CenterForm());
  }
  private void CenterForm_Resize(object sender, System.EventArgs e)
  {
    Invalidate();
    Console.WriteLine("Resize");
  }
  private void CenterForm_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
  {
    Graphics g = e.Graphics;
    g.DrawString("Text", 
      new Font("Times New Roman", 20), 
      new SolidBrush(Color.Black), 
      this.DisplayRectangle);    
  }
}

Change Form ClientSize

using System;
using System.Drawing;
using System.Windows.Forms;
public class FormClientSize : Form
{
  private Button btnShow;
  private Button btnChange;
  private Label lbl;
  public FormClientSize()
  {
    BackColor = Color.LightBlue;
    ForeColor = Color.DarkBlue;
    ClientSize = new Size(350,200);
    Width = 350;
    Height = 200;
    btnShow = new Button();
    btnShow.Location = new Point(50,50);
    btnShow.Size = new Size(100,23);
    btnShow.Text = "Show";
    btnShow.Click += new System.EventHandler(btnShow_Click);
    btnShow.Parent = this;
    btnChange = new Button();
    btnChange.Location = new Point(200,50);
    btnChange.Size = new Size(100,23);
    btnChange.Text = "Change";
    btnChange.Click += new System.EventHandler(btnChange_Click);
    btnChange.Parent = this;
    lbl = new Label();
    lbl.Text = "Control Size and Location";
    lbl.Size = new Size(400,25);
    lbl.Parent = this;
  }
  static void Main() 
  {
    Application.Run(new FormClientSize());
  }
  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("Form Size:" + this.Size.ToString() );
    Console.WriteLine("Form ClientSize:" + this.ClientSize.ToString());
  }
  private void btnChange_Click(object sender, EventArgs e)
  {
    this.Size = new Size(800,200);
  }
}

Form Bounds Setting

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class FormBoundsSetting : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components = null;
  public FormBoundsSetting()
  {
    Top = 100;
    Left = 75;
    Height = 100;
    Width = 500;
    MessageBox.Show(Bounds.ToString(), "Current rect");
    InitializeComponent();
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );    
  }
  private void InitializeComponent()
  {
    this.ruponents = new System.ruponentModel.Container();
    this.Size = new System.Drawing.Size(300,300);
    this.Text = "Form1";
  }
  [STAThread]
  static void Main() 
  {
    Application.Run(new FormBoundsSetting());
  }
}

Form Opacity setting

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class FormOpacitySetting : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components = null;
  public FormOpacitySetting()
  {
    InitializeComponent();
    Opacity = 0.5d;
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }
  private void InitializeComponent()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(292, 273);
    this.Text = "Form1";
  }
  [STAThread]
  static void Main() 
  {
    Application.Run(new FormOpacitySetting());
  }
  private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
  {
    Graphics g = e.Graphics;
    g.DrawString("String...", new Font("Times New Roman", 20), new SolidBrush(Color.Black), 40, 10);
  }
}

Form.StartPosition

using System.Drawing;
using System.Windows.Forms;
   
class FormProperties
{
     public static void Main()
     {
          Form form = new Form();
   
          form.StartPosition   = FormStartPosition.CenterScreen;
   
          Application.Run(form);
     }
}

Form with Maximize Box

using System;
using System.Drawing;
using System.ruponentModel;
using System.Windows.Forms;
public class FormSizable : System.Windows.Forms.Form
{
    public FormSizable()
    {
        this.MaximizeBox = true;
        this.FormBorderStyle = FormBorderStyle.Sizable;
    }
    static void Main()
    {
        Application.Run(new FormSizable());
    }
}

Form without MinimizeBox and MaximizedBox

using System;
using System.Drawing;
using System.Windows.Forms;
public class FormMoveDemo : Form
{
    private bool dragging;
    private Point pointClicked;
    public FormMoveDemo()
    {
        InitializeComponent();
    }
    private void lblDrag_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == MouseButtons.Left)
        {
            dragging = true;
            pointClicked = new Point(e.X, e.Y);
        }
        else
        {
            dragging = false;
        }
    }
    private void lblDrag_MouseMove(object sender, MouseEventArgs e)
    {
        if (dragging){
            Point pointMoveTo;
            pointMoveTo = this.PointToScreen(new Point(e.X, e.Y));
            pointMoveTo.Offset(-pointClicked.X, -pointClicked.Y);
            this.Location = pointMoveTo;
        }   
    }
    private void lblDrag_MouseUp(object sender, MouseEventArgs e)
    {
        dragging = false;
    }
    private void cmdClose_Click(object sender, EventArgs e)
    {
        this.Close();
    }
    [STAThread]
    public static void Main(string[] args)
    {
        Application.Run(new FormMoveDemo());
    }
    private System.Windows.Forms.Button cmdClose= new System.Windows.Forms.Button();
    private System.Windows.Forms.Label lblDrag = new System.Windows.Forms.Label();
    private System.ruponentModel.IContainer components = null;
    private void InitializeComponent()
    {
        this.SuspendLayout();
        // 
        // cmdClose
        // 
        this.cmdClose.Location = new System.Drawing.Point(102, 215);
        this.cmdClose.Name = "cmdClose";
        this.cmdClose.Size = new System.Drawing.Size(76, 20);
        this.cmdClose.TabIndex = 5;
        this.cmdClose.Text = "Close";
        this.cmdClose.Click += new System.EventHandler(this.cmdClose_Click);
        // 
        // lblDrag
        // 
        this.lblDrag.BackColor = System.Drawing.Color.Navy;
        this.lblDrag.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
        this.lblDrag.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.lblDrag.ForeColor = System.Drawing.Color.White;
        this.lblDrag.Location = new System.Drawing.Point(94, 167);
        this.lblDrag.Name = "lblDrag";
        this.lblDrag.Size = new System.Drawing.Size(96, 36);
        this.lblDrag.TabIndex = 4;
        this.lblDrag.Text = "Click here to move the form!";
        this.lblDrag.MouseUp += new System.Windows.Forms.MouseEventHandler(this.lblDrag_MouseUp);
        this.lblDrag.MouseMove += new System.Windows.Forms.MouseEventHandler(this.lblDrag_MouseMove);
        this.lblDrag.MouseDown += new System.Windows.Forms.MouseEventHandler(this.lblDrag_MouseDown);
        // 
        // FormMoveDemo
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(292, 266);
        this.ControlBox = false;
        this.Controls.Add(this.cmdClose);
        this.Controls.Add(this.lblDrag);
        this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
        this.MaximizeBox = false;
        this.MinimizeBox = false;
        this.ResumeLayout(false);
    }
   
}

Resize redraw form: get/set Form style

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class FormStyleResizeRedraw : System.Windows.Forms.Form
{
  private System.Windows.Forms.Button btnGetStyles;
  private System.ruponentModel.Container components = null;
  public FormStyleResizeRedraw()
  {
    InitializeComponent();
    SetStyle(ControlStyles.ResizeRedraw, true);
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }
  private void InitializeComponent()
  {
    this.btnGetStyles = new System.Windows.Forms.Button();
    this.btnGetStyles.Location = new System.Drawing.Point(24, 64);
    this.btnGetStyles.Size = new System.Drawing.Size(160, 23);
    this.btnGetStyles.TabIndex = 0;
    this.btnGetStyles.Text = "Get Form Styles";
    this.btnGetStyles.Click += new System.EventHandler(this.btnGetStyles_Click);
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(211, 104);
    this.Controls.AddRange(new System.Windows.Forms.Control[] {this.btnGetStyles});
    this.Text = "A Form with Style!";

  }
  [STAThread]
  static void Main() 
  {
    Application.Run(new FormStyleResizeRedraw());
  }
  private void btnGetStyles_Click(object sender, System.EventArgs e)
  {
    MessageBox.Show(GetStyle(ControlStyles.ResizeRedraw).ToString(), "Do you have ResizeRedraw?");
  }
}

Set form background color

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class SetBackgroundForm : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components;
  public SetBackgroundForm()
  {
    InitializeComponent();
    BackColor = Color.LemonChiffon;
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }
  private void InitializeComponent()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(292, 273);
    this.Resize += new System.EventHandler(this.SetBackgroundForm_Resize);
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.SetBackgroundForm_Paint);
    }
  [STAThread]
  static void Main() 
  {
    Application.Run(new SetBackgroundForm());
  }
  private void SetBackgroundForm_Resize(object sender, System.EventArgs e)
  {
    Invalidate();
    Console.WriteLine("Resize");
  }
  private void SetBackgroundForm_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
  {
    Graphics g = e.Graphics;
    g.DrawString("Text", 
      new Font("Times New Roman", 20), 
      new SolidBrush(Color.Black), 
      this.DisplayRectangle);    
  }
}

Set FormBorderStyle

using System.Drawing;
using System.Windows.Forms;
   
class FormProperties
{
     public static void Main()
     {
          Form form = new Form();
   
          form.FormBorderStyle = FormBorderStyle.FixedSingle;
   
          Application.Run(form);
     }
}

Set form caption

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class SetFormCaption : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components;
  public SetFormCaption()
  {
    InitializeComponent();
    Text = "www.nfex.ru";    
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }
  private void InitializeComponent()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(292, 273);
    this.Text = "DataGridExample";
    this.Resize += new System.EventHandler(this.SetFormCaption_Resize);
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.SetFormCaption_Paint);
    }
  [STAThread]
  static void Main() 
  {
    Application.Run(new SetFormCaption());
  }
  private void SetFormCaption_Resize(object sender, System.EventArgs e)
  {
    Invalidate();
    Console.WriteLine("Resize");
  }
  private void SetFormCaption_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
  {
    Graphics g = e.Graphics;
    g.DrawString("Text", 
      new Font("Times New Roman", 20), 
      new SolidBrush(Color.Black), 
      this.DisplayRectangle);    
  }
}

Set Form Height

using System.Drawing;
using System.Windows.Forms;
   
class FormProperties
{
     public static void Main()
     {
          Form form = new Form();
   
          form.Height         /= 2;
   
          Application.Run(form);
     }
}

Set Form size

using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class SetFormSize : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components;
  public SetFormSize()
  {
    InitializeComponent();
    Size = new Size(200, 200);
  }
  protected override void Dispose( bool disposing )
  {
    if( disposing )
    {
      if (components != null) 
      {
        components.Dispose();
      }
    }
    base.Dispose( disposing );
  }
  private void InitializeComponent()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(292, 273);
    this.Resize += new System.EventHandler(this.SetFormSize_Resize);
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.SetFormSize_Paint);
    }
  [STAThread]
  static void Main() 
  {
    Application.Run(new SetFormSize());
  }
  private void SetFormSize_Resize(object sender, System.EventArgs e)
  {
    Invalidate();
    Console.WriteLine("Resize");
  }
  private void SetFormSize_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
  {
    Graphics g = e.Graphics;
    g.DrawString("Text", 
      new Font("Times New Roman", 20), 
      new SolidBrush(Color.Black), 
      this.DisplayRectangle);    
  }
}

Set Form Width

using System.Drawing;
using System.Windows.Forms;
   
class FormProperties
{
     public static void Main()
     {
          Form form = new Form();
   
          form.Width          *= 2;
   
          Application.Run(form);
     }
}

Use Form.DialogResult

using System;
using System.Drawing;
using System.Windows.Forms;
   
class SimpleDialog: Form
{
     public static void Main()
     {
          Application.Run(new SimpleDialog());
     }
     public SimpleDialog()
     {
   
          Menu = new MainMenu();
          Menu.MenuItems.Add("&Dialog!", new EventHandler(MenuOnClick));
     }
     void MenuOnClick(object obj, EventArgs ea)
     {
          SimpleDialogBox dlg = new SimpleDialogBox();
   
          dlg.ShowDialog();
   
          Console.WriteLine(dlg.DialogResult);
          
     }
}
class SimpleDialogBox: Form
{
     public SimpleDialogBox()
     {
          Text = "Simple 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.Click   += new EventHandler(ButtonOkOnClick);
   
          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.Click   += new EventHandler(ButtonCancelOnClick);
     }
     void ButtonOkOnClick(object obj, EventArgs ea)
     {
          DialogResult = DialogResult.OK;
     }
     void ButtonCancelOnClick(object obj, EventArgs ea)
     {
          DialogResult = DialogResult.Cancel;
     }
}

Csharp/CSharp Tutorial/GUI Windows Forms/Form Properties

Содержание

Center Form to the screen

Change Form ClientSize

Form Bounds Setting

Form Opacity setting

Form.StartPosition

Form with Maximize Box

Form without MinimizeBox and MaximizedBox

Resize redraw form: get/set Form style

Set form background color

Set FormBorderStyle

Set form caption

Set Form Height

Set Form size

Set Form Width

Use Form.DialogResult

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