'Declaration Public Overrides Sub InvalidateLayout()
public override void InvalidateLayout()
Gridbag layout manager caches layout information which needs to be invalidated any time a change is made that would effect how the items are laid out.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2