CRR0039 - The 'await' expression without cancellation token

• Jun 26, 2019

This analyzer detects asynchronous method calls without a valid CancellationToken.

C#

await Task.Run(() => { DemoMethodSync(); }).ConfigureAwait(false);

VB.NET

Await Task.Run(Sub() DemoMethodSync()).ConfigureAwait(False)

You should use a CancellationToken object with all asynchronous methods to be able to cancel tasks. Refer to the Task Cancellation article for more information.

C#

await Task.Run(() => { DemoMethodSync(); }, cancellationToken).ConfigureAwait(false);

VB.NET

Await Task.Run(Sub() DemoMethodSync(), cancellationToken).ConfigureAwait(False)