C# 7 and .NET Core Cookbook

How to do it...

1. Create two folders called AsyncDestination and AsyncSource:

2. To the AsyncSource folder, add a couple of large files to process:

3. Create a new WinForms application and add a forms times control, a button, and a label called lblTimer to the form. Call the timer asyncTimer and set its Interval to 1000 milliseconds (1 second):

4. In the code above the constructor, add the CancellationTokenSource object and the elapsedTime variable ...