Determine whether the family has been defined by the user.
Namespace:
Autodesk.Revit.DB
Assembly:
RevitAPI
(in RevitAPI.dll) Version: 17.0.0.0 (17.0.484.0)
Since:
2015
Syntax
Remarks
Some families are created internally and cannot be saved or reloaded.
This function will return False for such internal families.