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MdiClient.ControlCollection.Add Method

Adds a control to the multiple-document interface (MDI) Container.

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

public override void Add(
	Control value


Type: System.Windows.Forms.Control

MDI Child Form to add.

This child must be a Form that is marked as an MDI Child to be added to the container. You should not call this directly, but rather set the child form's (ctl) MDIParent property:

      // incorrect
      Form child = new ChildForm();
      // correct
      Form child = new ChildForm();

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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