Sets the default family type id for the given family category.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0)
Since: 2015

Syntax

C#
`public void SetDefaultFamilyTypeId( ElementId familyCategoryId, ElementId familyTypeId )`

Visual Basic
`Public Sub SetDefaultFamilyTypeId ( _ familyCategoryId As ElementId, _ familyTypeId As ElementId _ )`

Visual C++
`public: void SetDefaultFamilyTypeId( ElementId^ familyCategoryId, ElementId^ familyTypeId )`

Parameters

familyCategoryId: Type: Autodesk.Revit.DB ElementId
The family category id.

familyTypeId: Type: Autodesk.Revit.DB ElementId
The default family type id.

Examples

Copy C#

private void SetDefaultTypeFromDoor(Document document, FamilyInstance door)
{
    ElementId doorCategoryId = new ElementId(BuiltInCategory.OST_Doors);

    // It is necessary to test the type suitability to be a default family type, for not every type can be set as default. 
    // Trying to set a non-qualifying default type will cause an exception
    if (door.Symbol.IsValidDefaultFamilyType(doorCategoryId))
    {
        document.SetDefaultFamilyTypeId(doorCategoryId, door.Symbol.Id);
    }
}

Copy VB.NET

Private Sub SetDefaultTypeFromDoor(document As Document, door As FamilyInstance)
   Dim doorCategoryId As New ElementId(BuiltInCategory.OST_Doors)

   ' It is necessary to test the type suitability to be a default family type, for not every type can be set as default. 
   ' Trying to set a non-qualifying default type will cause an exception
   If door.Symbol.IsValidDefaultFamilyType(doorCategoryId) Then
      document.SetDefaultFamilyTypeId(doorCategoryId, door.Symbol.Id)
   End If
End Sub

Exceptions

Exception	Condition
Autodesk.Revit.Exceptions ArgumentException	The family type id familyTypeId is invalid for the give family category familyCategoryId.
Autodesk.Revit.Exceptions ArgumentNullException	A non-optional argument was null

SetDefaultFamilyTypeId Method

Syntax

Parameters

Examples

Exceptions

See Also

Put AI to work inside Revit.