The dimension value as a user visible string.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 20.0.0.0 (20.0.0.377)
Syntax
Remarks
This property always return nullNothingnullptra null reference (Nothing in Visual Basic) if this is a spot dimension,
or it is a linear dimension with more than one segments.