Revit 2025 API
DocumentIs |
Checks whether the family type id is valid for the give family category.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
public bool IsDefaultFamilyTypeIdValid( ElementId familyCategoryId, ElementId familyTypeId )
Public Function IsDefaultFamilyTypeIdValid ( familyCategoryId As ElementId, familyTypeId As ElementId ) As Boolean
public: bool IsDefaultFamilyTypeIdValid( ElementId^ familyCategoryId, ElementId^ familyTypeId )
member IsDefaultFamilyTypeIdValid : familyCategoryId : ElementId * familyTypeId : ElementId -> bool
Parameters
- familyCategoryId ElementId
- The family category id.
- familyTypeId ElementId
- The default family type id.
Return Value
BooleanTrue if the family type id is valid for the give family category, false otherwise.

Exception | Condition |
---|---|
ArgumentNullException | A non-optional argument was null |
See Also