Creates a new unplaced room and with an assigned phase. 
   Namespace:   Autodesk.Revit.Creation  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
Syntax
| C# | 
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| Visual Basic | 
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| Visual C++ | 
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Parameters
- phase
 -  Type:  Autodesk.Revit.DB Phase  
The phase in which the room is to exist. 
Return Value
If successful the new room , otherwise a null reference ( Nothing in Visual Basic) .Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentException | Thrown if the phase does not exist in the given document. |