public LoginAuthenticator() { //change the path var AdminLogins = File.ReadAllLines(ConfigurationManager.AppSettings["ADMIN_LOGINS_csv"]); foreach (var AdminLogin in AdminLogins) { var EachAdmin = AdminLogin.Split(','); AdminCredentials.Add(EachAdmin[0].Trim(), EachAdmin[1].Trim()); } var UserLogins = File.ReadAllLines(ConfigurationManager.AppSettings["USER_LOGINS_csv"]); foreach (var UserLogin in UserLogins) { var EachUser = UserLogin.Split(','); UserCredentials.Add(EachUser[0].Trim(), EachUser[1].Trim()); } }