Changing the port of the System.Uri

Question

So I have this Uri object which contains an address, something like http://localhost:1000/blah/blah/blah . I need to change the port number and leave all other parts of the address intact. Let's say I need it to be http://localhost:1080/blah/blah/blah .

The Uri objects are pretty much immutable, so I can access the port number through the Port property, but it's read-only. Is there any sane way to create an Uri object exactly like another but with different port? By "sane" I mean "without messing around with regular expressions and string manipulations" because while it's trivial for the example above, it still smells like a can of worms to me. If that's the only way, I really hope that it's already implemented by someone and there are some helpers out there maybe (I didn't find any though)

Thanks in advance.

Answer 1

Have you considered the UriBuilder class?

http://msdn.microsoft.com/en-us/library/system.uribuilder.aspx

The UriBuilder class provides a convenient way to modify the contents of a Uri instance without creating a new Uri instance for each modification.

The UriBuilder properties provide read/write access to the read-only Uri properties so that they can be modified.

Answer 2

I second a vote for UriBuilder . I actually have an extension method for changing the port of a URI:

public static class UriExtensions {
    public static Uri SetPort(this Uri uri, int newPort) {
        var builder = new UriBuilder(uri);
        builder.Port = newPort;
        return builder.Uri;
    }
}

Usage:

var uri = new Uri("http://localhost:1000/blah/blah/blah");
uri = uri.SetPort(1337); // http://localhost:1337/blah/blah/blah