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ExporterIFC.SetMaterialIdForCurrentExportState

Method
Description:
This sets the material id that is to be associated with the element in the current export state.
Remarks:
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.
Syntax
Parameters
Parameter Type Description
elementId ElementId The material id.
Return Value
Exceptions
Exception Condition
ArgumentNullException A non-optional argument was null