TaskCompletionSource<TResult>.TrySetException Method

Definition

Namespace:

System.Threading.Tasks

Assembly:

System.Runtime.dll

Attempts to transition the underlying Task<TResult> object into the Faulted state.

Overloads

TrySetException(IEnumerable<Exception>)	Attempts to transition the underlying Task<TResult> into the Faulted state and binds a collection of exception objects to it.
TrySetException(Exception)	Attempts to transition the underlying Task<TResult> into the Faulted state and binds it to a specified exception.

TrySetException(IEnumerable<Exception>)

Source:

TaskCompletionSource_T.cs

Attempts to transition the underlying Task<TResult> into the Faulted state and binds a collection of exception objects to it.

public:
 bool TrySetException(System::Collections::Generic::IEnumerable<Exception ^> ^ exceptions);

public bool TrySetException (System.Collections.Generic.IEnumerable<Exception> exceptions);

member this.TrySetException : seq<Exception> -> bool

Public Function TrySetException (exceptions As IEnumerable(Of Exception)) As Boolean

Parameters

exceptions

IEnumerable<Exception>

The collection of exceptions to bind to this Task<TResult>.

Returns

Boolean

true if the operation was successful; otherwise, false.

Exceptions

ObjectDisposedException

The Task was disposed.

ArgumentNullException

The exceptions argument is null.

ArgumentException

There are one or more null elements in exceptions.

-or-

The exceptions collection is empty.

Remarks

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

See also

• Using TPL with Other Asynchronous Patterns
• How to: Wrap EAP Patterns in a Task

TrySetException(Exception)

Source:

TaskCompletionSource_T.cs

Attempts to transition the underlying Task<TResult> into the Faulted state and binds it to a specified exception.

public:
 bool TrySetException(Exception ^ exception);

public bool TrySetException (Exception exception);

member this.TrySetException : Exception -> bool

Public Function TrySetException (exception As Exception) As Boolean

Parameters

exception

Exception

The exception to bind to this Task<TResult>.

Returns

Boolean

true if the operation was successful; otherwise, false.

Exceptions

ObjectDisposedException

The Task was disposed.

ArgumentNullException

The exception argument is null.

Remarks

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

See also

• Using TPL with Other Asynchronous Patterns
• How to: Wrap EAP Patterns in a Task