TcxCustomViewInfoItem.Invalidate(TRect,Boolean) Method

Repaints a visual element.

Declaration

procedure Invalidate(const R: TRect; AEraseBackground: Boolean = False); overload; virtual;

Parameters

Name	Type
R	TRect
AEraseBackground	Boolean

Remarks

Use the Invalidate method to repaint elements whenever you need. You can force ViewInfo to be recalculated before repainting by passing True as the ARecalculate parameter. By default, the method does not recalculate ViewInfo to save system time and resources and to provide smooth repainting. Elements can have a complex structure and recalculating their ViewInfos is a very slow operation. So force ViewInfo recalculation only if it is absolutely necessary.