Gets the upstream electrical analytical node id.
Namespace: Autodesk.Revit.DB.Electrical
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
public ElementId GetUpstreamNodeId()
ElementId The upstream node id.
If the area based load supplies from Node A, Node A is the upstream node of the area based load, and the area based load is the downstream node of node A.