The unique id of the originating CAD object's link (linked document) associated with this surface.
Namespace:
Autodesk.Revit.DB.Analysis
Assembly:
RevitAPI
(in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since:
2012
Syntax
Remarks
This id can be passed to obtain the element from Document.Element[string] property, but any link obtained through this method
may no longer be a valid or up-to-date link. The originating CAD link is only accurate and up-to-date at the time of creation of the energy model.
An empty string is returned if the originating CAD object is not hosted in a linked document.