This sets the material id that is to be associated with the element in the current export state.
Namespace: Autodesk.Revit.DB.IFC
Assembly: RevitAPIIFC (in RevitAPIIFC.dll) Version: 25.0.0.0 (25.0.0.0)
public void SetMaterialIdForCurrentExportState( ElementId elementId)
elementId ElementId
The material id.
Exception
Condition
A non-optional argument was null
Even though there could be several materials associated with the element (set during PushExportState()), unless the element has support for IfcMaterialLayerSet, IFC output will include only this one.