ViewPlanGetUnderlayBaseLevel Method

Returns the element id of the level that defines the bottom of the underlay range.

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

Syntax

public ElementId GetUnderlayBaseLevel()

Public Function GetUnderlayBaseLevel As ElementId

public:
ElementId^ GetUnderlayBaseLevel()

member GetUnderlayBaseLevel : unit -> ElementId

ElementId
If InvalidElementId is returned, then the underlay base level is not set and no elements will be displayed as underlay.