How to remove a substring from a string in c#

Question

string url = http://localhost:55914/tp://dev.dotcom.com/attachments/avatar/Faces9.jpg

I want to remove the substring from localhost until the forward slashes before dev, how can I achieve that?

So the final string should be as follows:

string final = http://dev.dotcom.com/attachments/avatar/Faces9.jpg

Answer 1

    string url = @"http://localhost:55914/tp://dev.dotcom.com/attachments/avatar/Faces9.jpg";
    var urls = url.Split("//");
    string newUrl = urls[0] + "//" + urls[2];

split the string using "//" and join the splitted first and last value using "//"

Answer 2

This will remove the specified substring

        string uri = "http://localhost:55914/tp://dev.dotcom.com/attachments/avatar/Faces9.jpg";
        uri = uri.Replace("http://localhost:55914/tp://", string.Empty);