Gets the associated family parameter of an element parameter. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Parameters
- elementParameter
 -  Type:  Autodesk.Revit.DB Parameter  
The parameter of an element in family. 
Return Value
The associated family parameter if there is an association between them, returns a null reference ( Nothing in Visual Basic) if not.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | Thrown when the input argument-"elementParameter"-is a null reference ( Nothing in Visual Basic) . |