How to remove the port number from a url string

Question

I have the following code snippet:

string tmp = String.Format(\"

        

Answer 1

var url = "http://google.com:80/asd?qwe=zxc#asd";
var regex = new Regex(@":\d+");
var cleanUrl = regex.Replace(url, "");

the solution with System.Uri is also possible but will be more bloated.