Creates a new AppearanceAssetElement from an existing rendering asset. 
   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
- document
 -  Type:  Autodesk.Revit.DB Document  
The document in which to create the AppearanceAssetElement. 
- name
 -  Type:  System String  
The name of the AppearanceAssetElement. 
- asset
 -  Type:  Autodesk.Revit.DB.Visual Asset  
The rendering asset of the element. 
Return Value
The new AppearanceAssetElement.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | name is an empty string. -or- name cannot include prohibited characters. -or- The given value for name is already in use as an appearance asset name. | 
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL |