Gets the ids of all subregion elements hosted on this topography surface.
Namespace: Autodesk.Revit.DB.Architecture
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2014
Syntax
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Return Value
The hosted subregion ids.Remarks
This applies to a TopographySurface element (not a SiteSubRegion or a topography surface associated with a BuildingPad). This applies to TopographySurface and SiteSubRegion elements.
Exceptions
| Exception | Condition |
|---|---|
| Autodesk.Revit.ExceptionsInvalidOperationException | This element is not a TopographySurface. |