I use a background worker to process the data. Then updatge the UI
controls to display the latest info.

Someone told me to use a delegate "ProgressChanged" to launch an
update of the UI controls (from the background worker thread). But
someone else told me to use "ReportProgress" to launch an update of UI
controls (from the background worker thread).

What's the difference (or relation) between the two? Which one is
better? I get lost in the world of a thread pool