ASP.NET: URI handling

Question

I\'m writing a method which, let\'s say, given 1 and hello should return http://something.com/?something=1&hello=en.

I

Answer 1

Edited to correct massively incorrect code

Based on this answer to a similar question you could easily do something like:

UriBuilder ub = new UriBuilder();

// You might want to take more care here, and set the host, scheme and port too
ub.Path = ResolveUrl("~/hello.aspx"); // Assumes we're on a page or control.

// Using var gets around internal nature of HttpValueCollection
var coll = HttpUtility.ParseQueryString(string.Empty);

coll["something"] = "1";
coll["hello"] = "en";

ub.Query = coll.ToString();
return ub.ToString();
// This returned the following on the VS development server:
// http://localhost/Hello.aspx?something=1&hello=en

This will also urlencode the collection, so:

coll["Something"] = "1";
coll["hello"] = "en&that";

Will output:

Something=1&hello=en%26that