Gets or sets the name of the Windows class to derive the control from.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The default value for this property is a null reference (Nothing in Visual Basic), indicating that the control is not derived from an existing control class. To derive from an existing control class, store the system class name in this property. For example, to derive from the standard Button control, set this property to "BUTTON".
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.