This method will return the fabrication id for the given reference.

Namespace: Autodesk.Revit.DB.Steel
Assembly: RevitAPI (in RevitAPI.dll) Version: 23.0.0.0 (23.1.0.0)
Since:  2019

Syntax

C#
public static Guid GetFabricationUniqueID(
	Document aDoc,
	Reference reference
)
Visual Basic
Public Shared Function GetFabricationUniqueID ( _
	aDoc As Document, _
	reference As Reference _
) As Guid
Visual C++
public:
static Guid GetFabricationUniqueID(
	Document^ aDoc, 
	Reference^ reference
)

Parameters

aDoc
Type: Autodesk.Revit.DB..::..Document
Document to which the reference belongs.
reference
Type: Autodesk.Revit.DB..::..Reference
The reference to the element or subelement for which fabrication id is required.

Return Value

The fabrication id of the element or subelement for this reference, if it has fabrication information attached, or an Guid.Empty otherwise.

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentNullException A non-optional argument was null

See Also