TaskCompletionSource<TResult>.SetFromTask(Task<TResult>) Method

Definition

Namespace:

System.Threading.Tasks

Assembly:

System.Runtime.dll

Source:

TaskCompletionSource_T.cs

Transitions the underlying Task<TResult> into the same completion state as the specified completedTask.

public:
 void SetFromTask(System::Threading::Tasks::Task<TResult> ^ completedTask);

public void SetFromTask (System.Threading.Tasks.Task<TResult> completedTask);

member this.SetFromTask : System.Threading.Tasks.Task<'Result> -> unit

Public Sub SetFromTask (completedTask As Task(Of TResult))

Parameters

completedTask

Task<TResult>

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

Exceptions

ArgumentNullException

completedTask is null.

ArgumentException

completedTask is not completed.

InvalidOperationException

The underlying Task<TResult> is already in one of the three final states: RanToCompletion, Faulted, or Canceled.

Remarks

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