Create a new duct ConnectorElement. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0) 
  Since:  2013 
Syntax
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Parameters
- document
-  Type:  Autodesk.Revit.DB Document  
 The document to add the connector to.
- ductSystemType
-  Type:  Autodesk.Revit.DB.Mechanical DuctSystemType  
 The DuctSystemType of the connector.
- profileShape
-  Type:  Autodesk.Revit.DB ConnectorProfileType  
 The profile shape of the duct.
- planarFace
-  Type:  Autodesk.Revit.DB Reference  
 The planar face to place the connector on.
Return Value
The duct ConnectorElement.Remarks
 Regenerates the document. 
 Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | The reference is not a planar face. -or- document is not a family document. | 
| 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 | 
| Autodesk.Revit.Exceptions InvalidOperationException | Connector creation is not allowed in this family. |