Checks whether this combination of fallback and target parameters can be used as a valid combination of inputs. 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
  Since:  2015 
Syntax
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Parameters
- target
-  Type:  Autodesk.Revit.DB TessellatedShapeBuilderTarget  
 What kind of geometrical objects should be built.
- fallback
-  Type:  Autodesk.Revit.DB TessellatedShapeBuilderFallback  
 What should be done if a geometrical object described by 'target' parameter cannot be built using all data from all stored face sets.
Return Value
True if the combination of fallback and target are a valid combination, false otherwise.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | A value passed for an enumeration argument is not a member of that enumeration |