The exception thrown when Revit cancels a background operation. Third-party 
developers are not expected to catch and handle this exception. Instead, if allowed
to propagate back to Revit code, it will be handled by Revit.
Namespace: Autodesk.Revit.Exceptions
Assembly: RevitAPI (in RevitAPI.dll) Version: 20.0.0.0 (20.1.1.1)
Since: 2017
 Syntax
Syntax
| C# | 
|---|
| [SerializableAttribute] public class BackgroundTaskCancelledException : ApplicationException | 
| Visual Basic | 
|---|
| <SerializableAttribute> _ Public Class BackgroundTaskCancelledException _ Inherits ApplicationException | 
| Visual C++ | 
|---|
| [SerializableAttribute] public ref class BackgroundTaskCancelledException : public ApplicationException | 
 Inheritance Hierarchy
Inheritance Hierarchy
System..::..Object
System..::..Exception
Autodesk.Revit.Exceptions..::..ApplicationException
Autodesk.Revit.Exceptions..::..BackgroundTaskCancelledException
System..::..Exception
Autodesk.Revit.Exceptions..::..ApplicationException
Autodesk.Revit.Exceptions..::..BackgroundTaskCancelledException