How to validate a URL

[ALI-R]

How can I programmatically figure out the a URL that user has been entered
is valid or not ,I mean wethere it exist or not????

thanks

[Kumar Reddi]

What you mean a URL exists or not?
Do you want to check for certain parameters passed in the query string. For
the you need to use Request.QueryString["parameterName"]

"ALI-R" <ne****@microsoft.com> wrote in message
news:uU**************@TK2MSFTNGP09.phx.gbl...

How can I programmatically figure out the a URL that user has been entered
is valid or not ,I mean wethere it exist or not????

thanks

[Curt_C [MVP]]

This is an ASP/VBscript sample but the same idea should be available in
ASP.NET
http://www.darkfalz.com/1046
--
Curt Christianson
Owner/Lead Developer, DF-Software
Site: http://www.Darkfalz.com
Blog: http://blog.Darkfalz.com
"ALI-R" <ne****@microsoft.com> wrote in message
news:uU**************@TK2MSFTNGP09.phx.gbl...

How can I programmatically figure out the a URL that user has been entered
is valid or not ,I mean wethere it exist or not????

thanks

[ALI-R]

I want to check that URL exist in internet or internaet ??

Thanks for your help
"Kumar Reddi" <Ku********@REMOVETHIS.gmail.com> wrote in message
news:%2****************@tk2msftngp13.phx.gbl...

What you mean a URL exists or not?
Do you want to check for certain parameters passed in the query string. For the you need to use Request.QueryString["parameterName"]

"ALI-R" <ne****@microsoft.com> wrote in message
news:uU**************@TK2MSFTNGP09.phx.gbl...

How can I programmatically figure out the a URL that user has been entered is valid or not ,I mean wethere it exist or not????

thanks

[Tampa .NET Koder]

Well .NET uses the HttpWequest and HttpWebResponse objects. You can do a
search on those. The theory is that you make a request passing the url. Then
you will get a response back. If the response code you got back is a 404
Error (Page not found), then the URL does not exist.
Easier said that done I guess.

"Curt_C [MVP]" wrote:

This is an ASP/VBscript sample but the same idea should be available in
ASP.NET
http://www.darkfalz.com/1046
--
Curt Christianson
Owner/Lead Developer, DF-Software
Site: http://www.Darkfalz.com
Blog: http://blog.Darkfalz.com
"ALI-R" <ne****@microsoft.com> wrote in message
news:uU**************@TK2MSFTNGP09.phx.gbl...

How can I programmatically figure out the a URL that user has been entered
is valid or not ,I mean wethere it exist or not????

thanks

[Mark Rae]

"Tampa .NET Koder" <Ta***********@discussions.microsoft.com> wrote in
message news:2B**********************************@microsof t.com...

Well .NET uses the HttpWequest and HttpWebResponse objects. You can do a
search on those. The theory is that you make a request passing the url.
Then
you will get a response back. If the response code you got back is a 404
Error (Page not found), then the URL does not exist.
Easier said that done I guess.

Yes indeed though, of course, the site could be down for maintenance or
whatever while you're running the check...