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Control.Layout Event

Occurs when a control should reposition its child controls.

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

'Declaration
Public Event Layout As LayoutEventHandler
'Usage
Dim instance As Control 
Dim handler As LayoutEventHandler 

AddHandler instance.Layout, handler

The Layout event occurs when child controls are added or removed, when the bounds of the control changes, and when other changes occur that can affect the layout of the control. The layout event can be suppressed using the SuspendLayout and ResumeLayout methods. Suspending layout enables you to perform multiple actions on a control without having to perform a layout for each change. For example, if you resize and move a control, each operation would raise a Layout event.

For more information about handling events, see Consuming Events.

The following code example centers a Form on the screen in the Layout event. This will keep the form centered as the user resizes it. This example requires that you have created a Form control.

Private Sub MyForm_Layout(ByVal sender As Object, _
    ByVal e As System.Windows.Forms.LayoutEventArgs) Handles MyBase.Layout

    ' Center the Form on the user's screen everytime it requires a Layout. 
    Me.SetBounds((System.Windows.Forms.Screen.GetBounds(Me).Width / 2) - (Me.Width / 2), _
        (System.Windows.Forms.Screen.GetBounds(Me).Height / 2) - (Me.Height / 2), _
        Me.Width, Me.Height, System.Windows.Forms.BoundsSpecified.Location)
End Sub

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

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

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