Namespace: Autodesk.Revit.DB Class: Document

Document.GetDefaultFamilyTypeId

Method

Description:
Gets the default family type id with the given family category id.

Syntax

public ElementId GetDefaultFamilyTypeId(
	ElementId familyCategoryId
)

Public Function GetDefaultFamilyTypeId ( 
	familyCategoryId As ElementId
) As ElementId

public:
ElementId^ GetDefaultFamilyTypeId(
	ElementId^ familyCategoryId
)

member GetDefaultFamilyTypeId : 
        familyCategoryId : ElementId -> ElementId

Examples

private void AssignDefaultTypeToColumn(Document document, FamilyInstance column)
{
    ElementId defaultTypeId = document.GetDefaultFamilyTypeId(new ElementId(BuiltInCategory.OST_StructuralColumns));

    if (defaultTypeId != ElementId.InvalidElementId)
    {
        FamilySymbol defaultType = document.GetElement(defaultTypeId) as FamilySymbol;
        if (defaultType != null)
        {
            column.Symbol = defaultType;
        }
    }
}

Private Sub AssignDefaultTypeToColumn(document As Document, column As FamilyInstance)
   Dim defaultTypeId As ElementId = document.GetDefaultFamilyTypeId(New ElementId(BuiltInCategory.OST_StructuralColumns))

   If defaultTypeId <> ElementId.InvalidElementId Then
      Dim defaultType As FamilySymbol = TryCast(document.GetElement(defaultTypeId), FamilySymbol)
      If defaultType IsNot Nothing Then
         column.Symbol = defaultType
      End If
   End If
End Sub

Parameters

Parameter	Type	Description
familyCategoryId	ElementId	The family category id.

Return Value

Type	Description
ElementId	The default family type id.

Exceptions

Exception	Condition
ArgumentNullException	A non-optional argument was null