---
title: "MultiLayerViewer..::.InvalidateViewer Method "
canonical: https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_WinControls_MultiLayerViewer_InvalidateViewer.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# MultiLayerViewer.InvalidateViewer Method 
 
Invalidates the control and causes it to be repainted.
 
## Overload List

|   |  Name |  Description |
| --- | --- | --- |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [InvalidateViewer()](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_WinControls_MultiLayerViewer_InvalidateViewer.htm.md) |  Invalidates the control and causes it to be repainted.<br> (Overrides [ViewerBase](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_ViewerBase.htm.md).[InvalidateViewer()](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_WinControls_ViewerBase_InvalidateViewer.htm.md).) |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [InvalidateViewer(Rectangle)](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_WinControls_MultiLayerViewer_InvalidateViewer_1_fbc750e9.htm.md) |  Invalidates the specified region of the control and causes it to be repainted.<br> (Overrides [ViewerBase](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_ViewerBase.htm.md).[InvalidateViewer(Rectangle)](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_WinControls_ViewerBase_InvalidateViewer_1_fbc750e9.htm.md).) |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [InvalidateViewer(InvalidationTarget)](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_WinControls_MultiLayerViewer_InvalidateViewer_1_84bbcf7b.htm.md) |  Invalidates the specified target of the control and causes it to be repainted.<br> (Overrides [ViewerBase](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_ViewerBase.htm.md).[InvalidateViewer(InvalidationTarget)](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_WinControls_ViewerBase_InvalidateViewer_1_84bbcf7b.htm.md).) |
   
## See Also

### Reference

- [MultiLayerViewer Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_MultiLayerViewer.htm.md)
- [MultiLayerViewer Members](https://www.graphicsmill.com/docs/gm5/AllMembers_T_Aurigma_GraphicsMill_WinControls_MultiLayerViewer.htm.md)
- [Aurigma.GraphicsMill.WinControls Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_WinControls.htm.md)