This indicates whether the input spatial element is a valid one. 
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2012 
Syntax
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Parameters
- spatialElement
- Type: Autodesk.Revit.DBSpatialElement
 The spatial element to be checked if its geometry can be calculated.
Return Value
It will return false if the room/space is not enclosed in 2d or has no location, or the height is too small.Exceptions
| Exception | Condition | 
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| Autodesk.Revit.ExceptionsArgumentNullException | A non-optional argument was null |