Sets the projection type of the CurveElement. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2012 
Syntax
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Parameters
- curveElem
-  Type:  Autodesk.Revit.DB CurveElement  
 The CurveElement.
- value
-  Type:  Autodesk.Revit.DB CurveProjectionType  
 The input projection type.
Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | The input CurveElement is not a CurveByPoints. | 
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL | 
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | A value passed for an enumeration argument is not a member of that enumeration |