---
title: "BitmapViewer..::.PreviewImageEnabled Property "
canonical: https://www.graphicsmill.com/docs/gmwc/P_Aurigma_GraphicsMill_AjaxControls_BitmapViewer_PreviewImageEnabled.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**You’re viewing documentation for an outdated product.** Graphics Mill Web Controls is no longer part of Graphics Mill.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/).

# BitmapViewer.PreviewImageEnabled Property 

**Applies to:** Graphics Mill Web Controls · **Archived documentation**
 
Gets/sets a value which enables the low-resolution preview of the image which is displayed in the background of the control while the portion of the high-resolution image is loaded to the browser.
 
**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 PreviewImageEnabled { get; set; }
```
 
### Property Value
The value which is **true** when low-resolution image should be used; **false** otherwise.
 
## Remarks
  
When preview image is generated, its width and height is divided by the value stored in the [PreviewImageResizeRatio](https://www.graphicsmill.com/docs/gmwc/P_Aurigma_GraphicsMill_AjaxControls_BitmapViewer_PreviewImageResizeRatio.htm.md) property. This image is downloaded to the browser entirely and stretched at the container. After that high resolution portion of the image is downloaded to client and displayed in the viewport. This way user can preview (with very poor quality though) the portion of the image, and he can scroll to the necessary position on the image before high resolution fragment is loaded.
 
Default value is **true**.
   
## See Also

### Reference

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