Indicates the function of a specified WallType, as specified in the parameter FUNCTION_PARAM on the WallType. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Members
| Member name | Description | 
|---|---|
| Interior | An interior wall. | 
| Exterior | An exterior wall. | 
| Foundation | A foundation wall. | 
| Retaining | A retaining wall. | 
| Soffit | A soffit wall. | 
| Coreshaft | A coreshaft wall. |