Invalidates some or all of the surface of the ToolStripItem and causes it to be redrawn.
This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.
|Invalidate()||Invalidates the entire surface of the ToolStripItem and causes it to be redrawn.|
|Invalidate(Rectangle)||Invalidates the specified region of the ToolStripItem by adding it to the update region of the ToolStripItem, which is the area that will be repainted at the next paint operation, and causes a paint message to be sent to the ToolStripItem.|