Checks whether the family symbol id is allowed for StructuralConnectionTypes with the given value for the applyTo property. 
   Namespace:   Autodesk.Revit.DB.Structure  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0) 
  Since:  2011 
Syntax
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Parameters
- doc
 -  Type:  Autodesk.Revit.DB Document  
 
- applyTo
 -  Type:  Autodesk.Revit.DB.Structure StructuralConnectionApplyTo  
 
- familySymbolId
 -  Type:  Autodesk.Revit.DB ElementId  
 
Return Value
True if %familySymbolId% is invalidElementId; or if it is the id of a FamilySymbol of category "Connection Symbols" (OST_StructConnectionSymbols) with its "Apply To" parameter set to match the applyTo property. Returns false otherwise.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 |