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WorkerSupportsCancellation

上面，我们采用了一个“Cancel”按钮来取消线程的执行—通过判断线程是否可以取消(通过属性WorkerSupportsCancellation)。 …

...度(WorkerReportsProgress)及是否支援取消 (WorkerSupportsCancellation)。

In the Properties window , set the BackgroundWorker component's WorkerReportsProgess and WorkerSupportsCancellation properties to true .