The direction style of stairs path. 
   Namespace:   Autodesk.Revit.DB.Architecture  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2013 
Syntax
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Members
| Member name | Description | 
|---|---|
| AlwaysUp | The direction of the stair path will always be UP direction. | 
| AutomaticUpDown | The direction of the stair path will be determined automatically. |