---
title: "BaseViewer..::.ViewportBounds Property "
canonical: https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_AjaxControls_BaseViewer_ViewportBounds.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/)

# BaseViewer.ViewportBounds Property 
 
Gets bounds of the viewport area.
 
**Namespace:** [Aurigma.GraphicsMill.AjaxControls](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_AjaxControls.htm.md)
 **Assembly:** Aurigma.GraphicsMill.AjaxControls (in Aurigma.GraphicsMill.AjaxControls.dll)
 
## Syntax
  
```
Public ReadOnly Property ViewportBounds As RectangleF
```
 
```csharp
public RectangleF ViewportBounds { get; }
```
 
### Property Value
 
The [RectangleF](http://msdn2.microsoft.com/en-us/kwafa1d7) value which represents bounds of the viewport area.
   
## See Also

### Reference

- [BaseViewer Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_BaseViewer.htm.md)
- [Aurigma.GraphicsMill.AjaxControls Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_AjaxControls.htm.md)