Forces a complete repaint of a Form or control.
object.Refresh
The object placeholder represents an object expression that evaluates to an object.
Use the Refresh method when you want to:
You cannot use Refresh on Menu or Timer controls.
Generally, painting a form or control is handled automatically while no events are occurring. However, there may be situations where you want the form or control updated immediately. For example, if you use a file list box, a directory list box, or a drive list box to show the current status of the directory structure, you can use Refresh to update the list whenever a change is made to the directory structure.