Adds a new flexible duct into the document, using a point array and duct type. 
   Namespace:   Autodesk.Revit.Creation  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
Syntax
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| Visual Basic | 
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| Visual C++ | 
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Parameters
- points
 -  Type:  System.Collections.Generic IList   XYZ  
The point array indicating the path of the flexible duct, including the end points. 
- ductType
 -  Type:  Autodesk.Revit.DB.Mechanical FlexDuctType  
The type of the flexible duct. 
Return Value
If creation was successful then a new flexible duct is returned, otherwise an exception with failure information will be thrown.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentNullException | Thrown when the input argument points is a null reference ( Nothing in Visual Basic) . | 
| Autodesk.Revit.Exceptions InvalidOperationException | Thrown when the flexible duct cannot be created or regenerate fails. | 
| Autodesk.Revit.Exceptions ArgumentException | Thrown if the flexible duct type does not exist in the given document. |