Gets the profile Family Symbols of the document. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2014 
Syntax
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Parameters
- document
-  Type:  Autodesk.Revit.DB Document  
 The document.
- profileFamilyUsage
-  Type:  Autodesk.Revit.DB ProfileFamilyUsage  
 The profile family usage.
- oneCurveLoopOnly
-  Type:  System Boolean  
 Whether or not to return only profiles with one curve loop.
Return Value
The set of profile Family Symbol element ids.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | A non-optional argument was NULL | 
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | A value passed for an enumeration argument is not a member of that enumeration |