Namespace: Autodesk.Revit.DB Class: Document

Document.SetDefaultFamilyTypeId

Method

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

Syntax

public void SetDefaultFamilyTypeId(
	ElementId familyCategoryId,
	ElementId familyTypeId
)

Public Sub SetDefaultFamilyTypeId ( 
	familyCategoryId As ElementId,
	familyTypeId As ElementId
)

public:
void SetDefaultFamilyTypeId(
	ElementId^ familyCategoryId, 
	ElementId^ familyTypeId
)

member SetDefaultFamilyTypeId : 
        familyCategoryId : ElementId * 
        familyTypeId : ElementId -> unit

Examples

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);
    }
}

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

Parameters

Parameter	Type	Description
familyCategoryId	ElementId	The family category id.
familyTypeId	ElementId	The default family type id.

Return Value

Exceptions

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