StandaloneGallery.Invalidate Method

Name	Parameters	Description
Invalidate()	none	Invalidates the region occupied by the StandaloneGallery object (adds the region to the control’s update region, which will be repainted during the next paint operation), and causes a paint message to be sent to the control.
Invalidate(Rectangle)	rect	Invalidates the specified region (adds it to the control’s update region, which will be repainted during the next paint operation), and causes a paint message to be sent to the control.