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Display ‘Please wait’ popup

This procedure explains how to add a ‘Please wait’ screen to an ASP.net application.
By default at server process (e.g. saving a request) you only see a progress bar in the status bar   . If it’s a long running process you might not see any update for a longer time, and users might think that the application stopped, is already finished or did not even start because they did not press the correct button. This might result in double clicks on the Save button or closure of the browser window without completion. Continue reading…