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Control.Resize Event

Occurs when the control is resized.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public event EventHandler Resize
/** @event */
public void add_Resize (EventHandler value)

/** @event */
public void remove_Resize (EventHandler value)

JScript supports the use of events, but not the declaration of new ones.

To determine the Size of the resized control, you can cast the sender parameter of the EventArgs data to a Control and get its Size property (or Height and Width properties individually).

To handle custom layouts, use the Layout event instead of the Resize event. The Layout event is raised in response to a Resize event, but also in response to other changes that affect the layout of the control.

For more information about handling events, see Consuming Events.

The following code example handles the Resize event of a Form. When the form is resized, the event handler ensures that the form stays square (its Height and Width remain equal).

private void Form1_Resize(object sender, System.EventArgs e)
{
   Control control = (Control)sender;
		
   // Ensure the Form remains square (Height = Width).
   if(control.Size.Height != control.Size.Width)
   {
      control.Size = new Size(control.Size.Width, control.Size.Width);
   }
}

private void Form1_Resize(Object sender, System.EventArgs e)
{
    Control control = (Control)sender;
    // Ensure the Form remains square (Height = Width).
    if (control.get_Size().get_Height() != control.get_Size().
        get_Width()) {
        control.set_Size(new Size(control.get_Size().get_Width(),
            control.get_Size().get_Width()));
    }
} //Form1_Resize

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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