Best way to handle a bad parameter in the url?

[David Thielen]

Hi;

If the user goes to my page with http://www.mydomain.com/app/page.aspx?ID=5
and there is no data for ID=5, what is the suggested best way to handle this.
I'd like to go to an error page rather than have 2 views in page.aspx, on
just for the error case.

--
thanks - dave
david_at_windwa rd_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm

[Rob MacFadyen]

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.Status Code = 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.redir ect()).

Regards,

Rob

"David Thielen" <th*****@nospam .nospamwrote in message
news:72******** *************** ***********@mic rosoft.com...

Hi;

If the user goes to my page with
http://www.mydomain.com/app/page.aspx?ID=5
and there is no data for ID=5, what is the suggested best way to handle
this.
I'd like to go to an error page rather than have 2 views in page.aspx, on
just for the error case.

--
thanks - dave
david_at_windwa rd_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm

[Walter Wang [MSFT]]

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 (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

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[David Thielen]

Thank you to both of you for both answers.

--
thanks - dave
david_at_windwa rd_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm


"Walter Wang [MSFT]" wrote:

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 (wa****@online. microsoft.com, remove 'online.')
Microsoft Online Community Support

=============== =============== =============== =====
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http://msdn.microsoft.com/subscripti...ult.aspx#notif
ications. If you are using Outlook Express, please make sure you clear the
check box "Tools/Options/Read: Get 300 headers at a time" to see your reply
promptly.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscripti...t/default.aspx.
=============== =============== =============== =====

This posting is provided "AS IS" with no warranties, and confers no rights.