|  Rebar  | 
 Whether the definition stores the parameter. 
 Namespace: Autodesk.Revit.DB.Structure
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
 Syntax
 Syntax  Parameters
- paramId ElementId
- Id of a parameter.
Return Value
BooleanTrue if the definition stores the parameter, false otherwise.
 Exceptions
 Exceptions  | Exception | Condition | 
|---|---|
| ArgumentNullException | A non-optional argument was null | 
 See Also
 See Also