ChangeTypeId Method (ElementId)

Changes the type of the element.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: (
Since: 2011


public ElementId ChangeTypeId(
	ElementId typeId
Visual Basic
Public Function ChangeTypeId ( _
	typeId As ElementId _
) As ElementId
Visual C++
ElementId^ ChangeTypeId(
	ElementId^ typeId


Type: Autodesk.Revit.DB ElementId
Identifier of the type to assign to this element.

Return Value

The new element id if new element is created, or InvalidElementId if the element's type changed without creating a new element.


In rare cases, applying a change in type will result in a new element being created. The only active examples of this are when applying a normal wall type to a curtain panel, or converting such a wall back to a curtain panel. In this situation the new element id is returned. Also, this element becomes invalid. See also: IsModifiable .


Exception Condition
Autodesk.Revit.Exceptions ArgumentException The type typeId is not valid for this element.
Autodesk.Revit.Exceptions ArgumentNullException A non-optional argument was null
Autodesk.Revit.Exceptions InvalidOperationException This Element cannot have type assigned.
Autodesk.Revit.Exceptions ModificationForbiddenException This Element is an internal element, such as a component of a loaded family or a group type. -or- The document containing this Element is in Group Edit Mode, Sketch Edit Mode, or Paste Mode, and the element is not a member of the group, sketch, or clipboard. -or- This Element is a member of a group or sketch, and the document is not currently editing the group or sketch.

See Also