Forum Post: Re: Trapping For Close Of A .net Form While A Synchronous Appserver Call Is...

[Lieven De Foor]

By using async AppServer calls you can keep the application responsive to events. This has multiple benefits: - No "Not responding" message/grayed out window. - Ability to show feedback to the user (e.g. show some sort of activity indicator like a progress bar spinning wheel). - Ability to allow user to (try to) close the screen while the async request is still outstanding. -> you can then still decide if this is allowed or not. This should work fine with an "on-screen inquiry function"

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