Get whether a service group is excluded from being used by the Route and Fill, Design to Fabrication, or Multi Point Routing commands. The default configuration values may be overridden by SetServiceGroupExclusions. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.0) 
  Since:  2017 Subscription Update 
Syntax
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Parameters
- groupIndex
-  Type:  System Int32  
 The index of the group.
Return Value
Returns true if the group indexed by groupIndex is currently to be excluded.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | the index groupIndex is not larger or equal to 0 and less than GroupCount |