ScrollableControlDesigner Class

Base designer class for extending the design mode behavior of a Control which should receive scroll messages.

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

public class ScrollableControlDesigner : ParentControlDesigner
public class ScrollableControlDesigner extends ParentControlDesigner
public class ScrollableControlDesigner extends ParentControlDesigner

ScrollableControlDesigner provides a base class for designers of controls that respond to scroll messages. In addition to the methods and functionality inherited from the ParentControlDesigner, ControlDesigner, and ComponentDesigner classes, ScrollableControlDesigner provides a WndProc method override that passes WM_HSCROLL and WM_VSCROLL messages to the control at design time.


If a form has its AutoScroll property set to active, the scroll bars are always active in the design-time environment.

You can associate a designer with a type using a DesignerAttribute. For an overview of customizing design time behavior, see Extending Design-Time Support.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0