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Control.DefaultSize Property

Gets the default size of the control.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

Protected Overridable ReadOnly Property DefaultSize As Size
Dim value As Size

value = Me.DefaultSize

/** @property */
protected Size get_DefaultSize ()

protected function get DefaultSize () : Size

Not applicable.

Property Value

The default Size of the control.

The DefaultSize property represents the Size of the control when it is initially created. You can adjust the size of the control by setting its Size property value.


To maintain better performance, do not set the Size of a control in its constructor. The preferred method is to override the DefaultSize property.


On Windows Server 2003 systems, the size of a Form is restricted by the maximum pixel width and height of the monitor.

Notes to Inheritors: When overriding the DefaultSize property in a derived class, it is preferable to return a Size with the desired dimensions rather than to override all the implementation.

The following code example overrides the DefaultSize property, and makes the default size of the form 500 pixels square.

Protected Overrides ReadOnly Property DefaultSize() As Size
      ' Set the default size of
      ' the form to 500 pixels square. 
      Return New Size(500, 500)
   End Get
End Property

/** @property 
protected Size get_DefaultSize()
    // Set the default size of
    // the form to 500 pixels square.
    return new Size(500, 500);

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0