How to stop the execution of an asynchronous operation?

Question

Programming

There is a button click handler:

async private void button1_Click(object sender, EventArgs e)
{
    //LoadFromFile выполняется "долго"
    var file = await Task.Factory.StartNew(() => LoadFromFile(fileName));
}

You need to interrupt the execution of the LoadFromFile method by pressing, for example, the "Cancel loading" button. How can I do that?

Answer 1

CancellationToken