Id of a built-in parameter group to which the parameter defined by this definition belongs.
Namespace:
Autodesk.Revit.DB
Assembly:
RevitAPI
(in RevitAPI.dll) Version: 17.0.0.0 (17.0.484.0)
Syntax
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Remarks
The parameter group can be changed, but only for parameters that are not built in.
In other words: Modifying the value of this property is only valid for parameter definitions
whose BuiltInParameter property returns BuiltInParameter.INVALID, e.g. Global Parameters.