Document   Get   |  
 Gets the default family type id with the given family category id. 
 Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Parameters
- familyCategoryId ElementId
 - The family category id.
 
Return Value
ElementIdThe default family type id.
| Exception | Condition | 
|---|---|
| ArgumentNullException | A non-optional argument was null |