问题
I'm trying to implement background worker into my program, so that it wont freeze when i run the program and starts retrieving the data I need.
I'm not quite sure how background worker works.
回答1:
Background workers are threads that run in the background and do work without interrupting/blocking your main thread.
You can read more here.
In quick terms:
In DoWork do your blocking operation. Whenever you can, report how far through you are with the operation using (sender as BackgroundWorker).ReportProgress(50); for example to report 50% completion.
You can have your main thread subscribe to the "ProgressChanged" event, which can update GUI or do other tasks which should occur when the progress has changed.
来源：https://stackoverflow.com/questions/15149235/background-worker-how-to