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Form.LayoutMdi Method

Arranges the multiple-document interface (MDI) child forms within the MDI parent form.

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

public void LayoutMdi(
	MdiLayout value


Type: System.Windows.Forms.MdiLayout
One of the MdiLayout values that defines the layout of MDI child forms.

You can use this method to arrange the MDI child forms in your MDI parent form to allow for easier navigation and manipulation of MDI child forms. MDI child forms can be tiled horizontally and vertically, cascaded, or as icons within the MDI parent form.

The following code example shows the event handlers for the menu items of a Window menu in an MDI application's parent form. Each event handler makes calls to the LayoutMdi method to arrange any child forms that are currently open in the application.

private void HorizontallyTileMyWindows (object sender, System.EventArgs e)
    // Tile all child forms horizontally.
    this.LayoutMdi( MdiLayout.TileHorizontal );

 private void VerticallyTileMyWindows (object sender, System.EventArgs e)
    // Tile all child forms vertically.
    this.LayoutMdi( MdiLayout.TileVertical );

 private void CascadeMyWindows (object sender, System.EventArgs e)
    // Cascade all MDI child windows.
    this.LayoutMdi( MdiLayout.Cascade );

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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