Unpin Method

Removes a particular story of the stairs (identified by its base level id) from a stairs group.

Namespace: Autodesk.Revit.DB.Architecture
Assembly: RevitAPI (in RevitAPI.dll) Version: (
Since: 2018


public Stairs Unpin(
	ElementId levelId
Visual Basic
Public Function Unpin ( _
	levelId As ElementId _
) As Stairs
Visual C++
Stairs^ Unpin(
	ElementId^ levelId


Type: Autodesk.Revit.DB ElementId
The base level id. If the level id belongs to the base level of a unpinned stairs element, it returns the stairs id directly.

Return Value

The unpinned stairs element.


If the story at the given level is in a group, it will separate an individual stairs element from the group with "unpinned" status. Changes you make to the returned stairs element will not affect any other stairs. If the story of stairs is already an individual stairs element, the status will be changed to "unpinned".


Exception Condition
Autodesk.Revit.Exceptions ArgumentException There is no stairs instance at the given base levelId.
Autodesk.Revit.Exceptions ArgumentNullException A non-optional argument was NULL

See Also