DocumentSetDefaultFamilyTypeId Method

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

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

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

Parameters

familyCategoryId ElementId: The family category id.
familyTypeId ElementId: The default family type id.

Exceptions

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

Example

C++

Copy

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

Reference

Document Class

Autodesk.Revit.DB Namespace