Prevent winforms UI block when using async/await

Question

I\'m fairly new to async/await programming and sometimes I feel that I understand it, and then all of a sudden something happens and throws me for a loop.

I\'m tryin

Answer 1

You just need to change the DoStuffAsync task little bit, as below.

private async Task DoStuffAsync(CancellationTokenSource c)
{
     return Task.Run(()=> {
            int ret = 0;

            // I wanted to simulator a long running process this way
            // instead of doing Task.Delay

            for (int i = 0; i < 500000000; i++)
            {



                ret += i;
                if (i % 100000 == 0)
                    Console.WriteLine(i);

                if (c.IsCancellationRequested)
                {
                    return ret;
                }
            }
            return ret;
        });
}