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
<source lang="csharp">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);
}
}</source>
Change Form ClientSize
<source lang="csharp">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);
}
}</source>
Form Bounds Setting
<source lang="csharp">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());
}
}</source>
Form Opacity setting
<source lang="csharp">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);
}
}</source>
Form.StartPosition
<source lang="csharp">using System.Drawing; using System.Windows.Forms;
class FormProperties {
public static void Main()
{
Form form = new Form();
form.StartPosition = FormStartPosition.CenterScreen;
Application.Run(form);
}
}</source>
Form with Maximize Box
<source lang="csharp">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());
}
}</source>
Form without MinimizeBox and MaximizedBox
<source lang="csharp">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);
}
}</source>
Resize redraw form: get/set Form style
<source lang="csharp">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?");
}
}</source>
Set form background color
<source lang="csharp">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);
}
}</source>
Set FormBorderStyle
<source lang="csharp">using System.Drawing; using System.Windows.Forms;
class FormProperties {
public static void Main()
{
Form form = new Form();
form.FormBorderStyle = FormBorderStyle.FixedSingle;
Application.Run(form);
}
}</source>
Set form caption
<source lang="csharp">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);
}
}</source>
Set Form Height
<source lang="csharp">using System.Drawing; using System.Windows.Forms;
class FormProperties {
public static void Main()
{
Form form = new Form();
form.Height /= 2;
Application.Run(form);
}
}</source>
Set Form size
<source lang="csharp">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);
}
}</source>
Set Form Width
<source lang="csharp">using System.Drawing; using System.Windows.Forms;
class FormProperties {
public static void Main()
{
Form form = new Form();
form.Width *= 2;
Application.Run(form);
}
}</source>
Use Form.DialogResult
<source lang="csharp">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;
}
}</source>
