Creates a nested aggregate and adds it to the aggregate.
Namespace: Autodesk.Revit.DB.IFC
Assembly: RevitAPIIFC (in RevitAPIIFC.dll) Version: 26.4.0.0 (26.4.0.0)
Syntax
C#
public IFCAggregate AddAggregate()
Return Value
IFCAggregateThe nested aggregate.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | The aggregate is not valid. |