Invalidate Method (Rectangle)
Collapse the table of content
Expand the table of content

ControlDesigner.Invalidate Method (Rectangle)

 

Invalidates the specified area of the control that is displayed on the design surface and signals the control designer to redraw the control.

Namespace:   System.Web.UI.Design
Assembly:  System.Design (in System.Design.dll)

public void Invalidate(
	Rectangle rectangle
)

Parameters

rectangle
Type: System.Drawing.Rectangle

A Rectangle object that represents the area to invalidate, relative to the upper-left corner of the control.

To enable the control designer to handle paint events, use the SetViewFlags method in the Initialize method.

The Invalidate method provides the design host with a way to instruct the control designer to redraw a specific part of the control.

.NET Framework
Available since 2.0
Return to top
Show:
© 2016 Microsoft