---
title: "ViewerClientSideOptions..::.PostBackOnZoomed Property "
canonical: https://www.graphicsmill.com/docs/gmwc/P_Aurigma_GraphicsMill_AjaxControls_ViewerClientSideOptions_PostBackOnZoomed.htm
archived: true
applies_to:
  - product: "Graphics Mill Web Controls"
---

**You’re viewing documentation for an outdated product.** Graphics Mill Web Controls is no longer part of Graphics Mill. For current design editing and rendering tools, see [Design Atoms .NET](https://customerscanvas.com/docs/on-premises/design-atoms-cs/), [Design Atoms JS](https://customerscanvas.com/docs/on-premises/design-atoms-js/), and [Design Editor](https://customerscanvas.com/docs/on-premises/design-editor/).

# ViewerClientSideOptions.PostBackOnZoomed Property 

**Applies to:** Graphics Mill Web Controls · **Archived documentation**
 
Gets/sets a value which turns automatic postback for the BaseViewer.Zoomed event on.
 
**Namespace:** [Aurigma.GraphicsMill.AjaxControls](https://www.graphicsmill.com/docs/gmwc/N_Aurigma_GraphicsMill_AjaxControls.htm.md)
 **Assembly:** Aurigma.GraphicsMill.AjaxControls (in Aurigma.GraphicsMill.AjaxControls.dll)
 
## Syntax
  
```csharp
public bool PostBackOnZoomed { get; set; }
```
 
### Property Value
The [Boolean](http://msdn2.microsoft.com/en-us/library/a28wyd50) value which turns automatic postback for the BaseViewer.Zoomed event on.
 
## Remarks
  
If BaseViewer.AutoPostBack is **true**, BaseViewer.Zoomed event fires regardless of the value of this property.
   
## See Also

### Reference

- [ViewerClientSideOptions Class](https://www.graphicsmill.com/docs/gmwc/T_Aurigma_GraphicsMill_AjaxControls_ViewerClientSideOptions.htm.md)
- [Aurigma.GraphicsMill.AjaxControls Namespace](https://www.graphicsmill.com/docs/gmwc/N_Aurigma_GraphicsMill_AjaxControls.htm.md)