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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 {
	void add (EventHandler^ value);
	void remove (EventHandler^ value);
}

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 = dynamic_cast<Control^>(sender);

      // Ensure the Form remains square (Height = Width). 
      if ( control->Size.Height != control->Size.Width )
      {
         control->Size = System::Drawing::Size( control->Size.Width, control->Size.Width );
      }
   }

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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