如何从WPF gui运行异步任务并与之交互

I have a WPF GUI, where I want to press a button to start a long task without freezing the window for the duration of the task. While the task is running I would like to get reports on progress, and I would like to incorporate another button that will stop the task at any time I choose. I have a WPF GUI, where I want to press a butto