Sets the rendering asset for the appearance asset element. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.0) 
  Since:  2014 
Syntax
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Parameters
- asset
 -  Type:  Autodesk.Revit.DB.Visual Asset  
The new rendering asset. It should be an appearance asset. 
Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL | 
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | The asset is not an appearance asset. |