passing and retrieving target url

Here is my problem..

I need to update an xml feed url attribute on the fly, with a new url using the old url as the target,

like this
original url, http://www.somesite.com/?someparam=this&anotherparam=that
new url redirect.aspx/?target=http://www.somesite.com/?someparam=this&anotherparam=that
in the redirect page i need to retrieve the target URl append some more veriables and then redirtect.

i think i can do the replacing in the XSLT without a hitch I need to now the syntax for passing the target URL though.

I also want to confirm this is valid, as the resulting URL will end up with 2 ? in it, and how would i collect the full url in C# when i try and retrieve it, as the url has parameters of its own
Thank you
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QuinnDesterAsked:
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GuitarRichCommented:
when you add the URL to your parameter you will need to encode it for http and decode it when you retrieve it in the redirect page. The HttpUtility class has methods for doing this.

e.g:

string originalUrl = @"http://www.somesite.com/?someparam=this&anotherparam=that";
string newUrl = string.format("redirect.aspx//?target={0}", HttpUtility.UrlEncode(@"http://www.somesite.com/?someparam=this&anotherparam=that"));
 
// To retrieve it
string url = HttpUtility.UrlDecode(Request.QueryString["target"].ToString());
Response.Redirect(url);

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QuinnDesterAuthor Commented:
I cant do that, i dont have access to the URL in the code behind untill after it is passed.

the URL comes directly from an xml feed which is transformed through my xslt file and out put directly to the page in html, i can added the redirect.aspx?target= to the start of the url.

Unless there is a way of encoding the url in XSLT while it is being transformed?
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QuinnDesterAuthor Commented:
A thought, if i used a form button for the link on the web page could i pass the url as the value and have the redirect as the action.

if so how would i go about building a form button in  XSLT ?
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QuinnDesterAuthor Commented:
I have created the form button in XSLT and it dispalys fine when testing it, but when the transformed html is displayed within the contentplaceholeder of my web page i get inconsitant result.
everything is in the page 8 times out of 10 refreshes only the first product of 20 is showing, the rest are  not showing, like they have been changed to the same color as the background.

the other 2 times they show correctly.
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QuinnDesterAuthor Commented:
I have found another way to do this, by URL encoding the URL within the xslt and passing it as a target tribute on the url.

I would still like to know if picking up a hidden field value from a plain html page is possible in .net
as this would come in very handy if it is, so will leave this question open for now.
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QuinnDesterAuthor Commented:
closing this question, will raise it again if the need arises
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