---
title: "CanvasViewer Class"
canonical: https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_CanvasViewer.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/)

# CanvasViewer Class
 
This class represents a scrollable viewport web control for vector objects.
 
**Namespace:** [Aurigma.GraphicsMill.AjaxControls](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_AjaxControls.htm.md)
 **Assembly:** Aurigma.GraphicsMill.AjaxControls.VectorObjects (in Aurigma.GraphicsMill.AjaxControls.VectorObjects.dll)
 
## Syntax
  
```
Public Class CanvasViewer _Inherits BaseViewer _Implements INamingContainer
```
 
```csharp
public class CanvasViewer : BaseViewer, INamingContainer
```
 
## Remarks
  
This class is intended to display multi-layered vector images. It allows zooming and scrolling the displayed image and supports undo and redo of actions.
 
## Inheritance Hierarchy
  
- [System.Object](http://msdn2.microsoft.com/en-us/e5kfa45b)
    - [System.Web.UI.Control](http://msdn2.microsoft.com/en-us/983zwx2h)
        - [System.Web.UI.WebControls.WebControl](http://msdn2.microsoft.com/en-us/k1x24e42)
            - [Aurigma.GraphicsMill.AjaxControls.BaseScriptControl](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_BaseScriptControl.htm.md)
                - [Aurigma.GraphicsMill.AjaxControls.BaseViewer](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_BaseViewer.htm.md)
                    - Aurigma.GraphicsMill.AjaxControls.CanvasViewer
 
## Object Model

[![](https://www.graphicsmill.com/docs/gm5/Aurigma.GraphicsMill.AjaxControls.VectorObjects_ObjectModel_26.png)](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_CanvasViewer.htm.md)
![](https://www.graphicsmill.com/docs/gm5/ObjectModel2.png)[![](https://www.graphicsmill.com/docs/gm5/Aurigma.GraphicsMill.AjaxControls.VectorObjects_ObjectModel_11.png)](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_VectorObjects_Canvas.htm.md)
![](https://www.graphicsmill.com/docs/gm5/ObjectModel1.png)[![](https://www.graphicsmill.com/docs/gm5/Aurigma.GraphicsMill.AjaxControls.VectorObjects_ObjectModel_28.png)](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_AjaxControls_ViewerClientSideOptions.htm.md)
  
## See Also

### Reference

- [CanvasViewer Members](https://www.graphicsmill.com/docs/gm5/AllMembers_T_Aurigma_GraphicsMill_AjaxControls_CanvasViewer.htm.md)
- [Aurigma.GraphicsMill.AjaxControls Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_AjaxControls.htm.md)

### Manual

- [How to Use AJAX Vector Objects](https://www.graphicsmill.com/docs/gm5/HowtoUseAJAXVectorObjects.htm.md)