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| .NET Framework Class Library |
| TaskExtensions..::.Unwrap Method (Task<(Of <(Task>)>)) |
| TaskExtensions Class See Also Send Feedback |
Creates a proxy Task that represents the
asynchronous operation of a Task{Task}.
Namespace:
System.Threading.Tasks
Assembly:
System.Threading (in System.Threading.dll)
Syntax
| Visual Basic (Declaration) |
|---|
Public Shared Function Unwrap ( _ task As Task(Of Task) _ ) As Task |
| C# |
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public static Task Unwrap( Task<Task> task ) |
Parameters
- task
- Type: System.Threading.Tasks..::.Task<(Of <(Task>)>)
The Task{Task} to unwrap.
Return Value
A Task that represents the asynchronous operation of the provided Task{Task}.Remarks
It is often useful to be able to return a Task from a
Task{TResult}, where the inner Task represents work done as part of the outer Task{TResult}. However,
doing so results in a Task{Task}, which, if not dealt with carefully, could produce unexpected behavior. Unwrap
solves this problem by creating a proxy Task that represents the entire asynchronous operation of such a Task{Task}.
Exceptions
| Exception | Condition |
|---|---|
| System..::.ArgumentNullException | The exception that is thrown if the task argument is null. |
See Also
