Replace host in Uri

Question

What is the nicest way of replacing the host-part of an Uri using .NET?

I.e.:

string ReplaceHost(string original, string newHostName);
//...
string s         


        

Answer 1

As @Ishmael says, you can use System.UriBuilder. Here's an example:

// the URI for which you want to change the host name
var oldUri = Request.Url;

// create a new UriBuilder, which copies all fragments of the source URI
var newUriBuilder = new UriBuilder(oldUri);

// set the new host (you can set other properties too)
newUriBuilder.Host = "newhost.com";

// get a Uri instance from the UriBuilder
var newUri = newUriBuilder.Uri;

Answer 2

System.UriBuilder is what you are after...

string ReplaceHost(string original, string newHostName) {
    var builder = new UriBuilder(original);
    builder.Host = newHostName;
    return builder.Uri.ToString();
}