Issue when moving between pages - muid querystring variable

Feb 23, 2009 at 12:28 PM

Hello, I have a webpage that contains the Upload control (with progress bar).  When I access this page, all is OK - I am able to upload and download documents, however when I move off the page I get the error :-

System.Web.HttpException: The upload identifier cannot be null or empty. You need to add a parameter named "muid" to the query string of your request.

To move off the page I am using a Server.Transfer to get to another page so I cannot really use a (muid) querystring variable.  Further, I can't see that there should be a need for a muid querystring variable when I move off the page as it is no longer relevant.

Can anyone help

Many thanks
Travis Ingram