TaskCompletionSource.TrySetFromTask(Task) Method

Definition

Namespace:

System.Threading.Tasks

Assembly:

System.Runtime.dll

Source:

TaskCompletionSource.cs

Attempts to transition the underlying Task<TResult> into the same completion state as the specified completedTask.

public:
 bool TrySetFromTask(System::Threading::Tasks::Task ^ completedTask);

public bool TrySetFromTask (System.Threading.Tasks.Task completedTask);

member this.TrySetFromTask : System.Threading.Tasks.Task -> bool

Public Function TrySetFromTask (completedTask As Task) As Boolean

Parameters

completedTask

Task

The completed task whose completion status (including exception or cancellation information) should be copied to the underlying task.

Returns

Boolean

true if the operation was successful; otherwise, false.

Exceptions

ArgumentNullException

completedTask is null.

ArgumentException

completedTask is not completed.

Remarks

This operation will return false if the Task<TResult> is already in one of the three final states: RanToCompletion, Faulted, or Canceled.