The end result of a user control is HTML. That HTML is lumped together with all the HTML of the page it's on. If you want to refresh the control, you need to refresh the whole page. If you wish to have a part of the page be able to refresh without refreshing the whole entire page, then you need to utilize whatever capabilities HTML has (to the extent and capabilities you wish to support). One such means is using an iframe for the refreshable part of the page. But then you aren't really using a user control, but putting another page in a frame.
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