how to select lines in a .txt document c#

Question

I am trying to do a script that reads the names and then sends a login request but it is random, how do I do it from first to last? EDIT: I want it to read the name from a file, try to log in, and then move on to the next one

            var lines6 = File.ReadAllLines(userspath);
            var ro6 = new Random();
            
            var randomLineNumber6 = ro6.Next(0, lines6.Length - 1);
            
            var line6 = lines6[randomLineNumber6];

            var client = new RestClient("https://eu.mspapis.com/loginidentity/connect/token");
            var request = new RestRequest();
            request.RequestFormat = DataFormat.Json;
            var r = request.AddObject(new

            {
                client_id = "unity.client",
                client_secret = "secret",
                grant_type = "password",
                scope = "openid nebula offline_access",
                username = server + "|" + line6,
                password = password,
                acr_values = "GameId:j68d",
            });

            var response = client.Execute(r, Method.POST);
            if (response.Content.Contains("access_token"))
            {
                Console.WriteLine("[ok]" + line6);
            }
            else
            {
                Console.WriteLine("[wrong]  " + line6);
            }

Answer 1

I'd recommend randomizing the array instead of picking random items in the array to guarantee never picking an item twice. There are a bunch of ways to do this, but something like

    var ro6 = new Random()
    foreach (var username in lines6.OrderBy(x => ro6.Next()))
    { 
        //login
    }

Should work, with all your login code where //login is. Then just put a break; statement when you successfully log in, or a return statement or something.

edit: if you don't need the randomness and I misunderstood the question, just get rid of the orderBy section