Whether the tag's leader has an elbow point or not. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.0) 
Syntax
Remarks
 Straight leaders do not have elbow points.  LeaderElbow  . 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions InvalidOperationException | The tag does not have a leader. |