System.Windows.Forms.Control.Invalidate Method

Invalidates the entire surface of the control and causes the control to be redrawn.

Syntax

public void Invalidate ()

Remarks

Calling the Control.Invalidate(System.Drawing.Region) method does not force a synchronous paint; to force a synchronous paint, call the Control.Update method after calling the Control.Invalidate(System.Drawing.Region) method. When this method is called with no parameters, the entire client area is added to the update region.

Requirements

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0