|  Instance  | 
 Return ids of the instances with unattached voids cutting the element. 
 Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
 Syntax
 Syntax  Parameters
- element Element
- The element being cut
Return Value
ICollection ElementIdIds of instances with unattached voids that cut this element
 Exceptions
 Exceptions  | Exception | Condition | 
|---|---|
| ArgumentNullException | A non-optional argument was null | 
 See Also
 See Also