Question

I have strings like:

http://127.0.0.1:22/Test

Is there some single function maybe using regular expressions that I can use to make remove the colon and port number.

It was previously suggested that I use the following but this is giving me problems if the CurrentUrl is null!

var ip = new Uri((string)Session["CurrentUrl"]);
var ipNoPort = string.Format("{0}://{1}/{2}", ip.Scheme, ip.Host, ip.PathAndQuery);
return Session["CurrentUrl"] == null ? Home() : Redirect((string)ipNoPort);

What I really need is some method that combines the three lines and checks for null also.

Answer 1

Just test for nullity before using the session variable:

if(Session["CurrentUrl"] != null)
{
  var ip = new Uri(Session["CurrentUrl"]);
  var ipNoPort = string.Format("{0}://{1}/{2}", ip.Scheme, ip.Host, ip.PathAndQuery);
  return Redirect(ipNoPort);
}

return Home();