Identifies the element id of the Ground Plane level for the SunAndShadowSettings element.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since: 2011

Syntax

C#
`public ElementId GroundPlaneLevelId { get; set; }`

Visual Basic
`Public Property GroundPlaneLevelId As ElementId Get Set`

Visual C++
`public: property ElementId^ GroundPlaneLevelId { ElementId^ get (); void set (ElementId^ value); }`

Exceptions

Exception	Condition
Autodesk.Revit.Exceptions ArgumentException	When setting this property: the element level is not a valid Ground Plane Level element.
Autodesk.Revit.Exceptions ArgumentNullException	When setting this property: A non-optional argument was NULL