Best way to handle a bad parameter in the url?

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David,

You could just throw an exception and let the normal ASP.NET error handling
catch it. This typically displays an ugly server error page... but if folks
are messing with URLs in unacceptable ways then this is ok.

You could do a "Response.Clear(); Response.StatusCode = 404;
Response.End();"... returning a "resource not found" error (typically "Page
not found") ... though this is a bit misleading.

You could also just redirect to a polite "request not understood" page
(response.redirect()).

Regards,

Rob
 
Hi David,

I also recommend just throw an application defined exception and let your
error page display a detailed error message that the ID passed on the
QueryString is not found.

I hope this helps. Please feel free to post here if anything is unclear.

Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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