| GrapeCity.Windows.SpreadSheet.UI Namespace > GcSpreadSheet Class : InvalidateColumns Method | 
| Overload | Description | 
|---|---|
| InvalidateColumns(Int32,Int32) | Invalidates the column state in the control. After the invalidation, the column layout and data are updated. | 
| InvalidateColumns(Int32,Int32,SheetArea) | Invalidates the column state in the control. After the invalidation, the column layout and data are updated. | 
Target Platforms: Windows 7, Windows 8 Desktop, Windows Vista SP1 or later, Windows Server 2000, Windows 2000 Professional (SP4), Windows XP (SP2), Windows 2008, Windows 2003 Server (SP1)