Question

I need to be able to handle an HTML encoded ampersand in my .Net code.

So the Url is

http://myite.com/index.aspx?language=en&Refresh=true

There is no way of changing this as it has been generated by something else so this is out of my control.

How can I read the Refresh parameter?

I have tried

HttpUtility.UrlDecode(Request.QueryString("Refresh")) 

but my Request.QueryString(“Refresh”) is actually empty, so this is pointless, as is Uri.EscapeDataString.

This can’t be the first time this has happened, but I’m struggling to find a solution, as most people would say use UrlEncoding, but as I said, the Url is out of my control.

Answer 1

& in your query string should be %26.

Since you can’t correct the url.

You can read the refresh value as:

Request.QueryString("amp;Refresh");

Note that the developer of the service you are using may correct this in future.
It would be good to be ready for that already.

var refresh = Request.QueryString("amp;Refresh");
if(String.IsNullOrEmpty(refresh))
    refresh = Request.QueryString("Refresh");