Hi, I'm using  javascript to redirect the user to our error page. I'm doing it this way as I'm trapping errors in our AJAX panel, so have no option but to use javascript.

So my function has

window.location.href="../error.aspx?param=value";

This works fine except that the user can see (and potentially edit) the values in the querystring. Is there any way of hiding the values whilst still passing them for the error page to pick up.

Thanks

 You'd need to do URL Rewriting to achieve that:

http://msdn2.microsoft.com/en-us/library/ms972974.aspx
http://www.csharpfriends.com/Articles/getTip.aspx?articleID=215
http://www.codeproject.com/aspnet/URLRewriter.asp

NC...

You could dynamically post to the error page as well. Refer to this link: http://mentaljetsam.wordpress.com/2008/06/02/using-javascript-to-post-data-between-pages/

Then you can move to the error page with a javascript call like so:

postwith('error.aspx',{param:'foo'});

string param = Request.Form["param"];

 Thank you both for your replies.

I went with jamezw's solution as I wanted to keep it all in the javascript function, and it worked a treat.

I then used VB on the error page (i.e. Me.Request.Form.item("param") ) to pick up the passed in parameters, rather than javascript as I needed to process the parameters as part of an existing VB process. That worked a treat too.

So I now have a much neater and more secure redirect happening. Thankyou very much !!!