You have selected elements that are already part of other Circuits that have assigned Panels. The elements you selected cannot be added to this Circuit.
Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public static FailureDefinitionId ElementsBelongToOtherCircuit { get; }Property Value
FailureDefinitionId
See Also
Reference