Hi
That's the default behavior of the web page. If the page, prior to sending data to client, receives data from form collection, then when it is refreshed it will ask user whether to re-send the same data again to be processed at the server side. If it is a postback process (sending form collection to itself), you may want to consider the use of "SmartNavigation". Add the attribute "SmartNavigation=true" to your ASPX Page directive to enable it. Note that this will work only for IE 5.0 or higher browsers.
client server application development