[]
        
Adds RenderingExtensionInfo to the end of the RenderingExtensionsCollection.
public int Add(RenderingExtensionInfo value)
| Type | Name | Description | 
|---|---|---|
| RenderingExtensionInfo | value | The RenderingExtensionInfo info to be added.  | 
    
| Type | Description | 
|---|---|
| int | The index of added item.  |