Retrieves other Element Ids that this Element is Auto-detecting against. 
   Namespace:   Autodesk.Revit.DB.Structure  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2011 
Syntax
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Parameters
- direction
 -  Type:  Autodesk.Revit.DB.Structure AnalyticalDirection  
Direction in which Analytical Auto-detect is being done. 
Return Value
A set of Element Ids against which this Element is Auto-detecting. The set may be empty if this Element is not Auto-detecting against anything.Remarks
 An empty set is a valid return value. It just means that this Element is not Auto-detecting against any other Elements in the given direction. 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | direction is invalid for Analytical Auto-detect. | 
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | A value passed for an enumeration argument is not a member of that enumeration |