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AreaBasedLoadBoundaryLineData.BottomLevelId

Property
Description:
The bottom level id of the area based load boundary line.
Remarks:
The bottom level's elevation cannot be higher than the top level.
Syntax
public ElementId BottomLevelId { get; set; }
Exceptions
Exception Condition
ArgumentException When setting this property: The ElementId levelId cannot be used as the bottom level. The ElementId levelId is not a Level or it's elevation is higher than the top level's elevation.
ArgumentNullException When setting this property: A non-optional argument was null