public bool Login(string userName, string password) { SQL s = new SQL(); if (s.loginCheck(userName, password)) { SQL.selectID("select userid from users where username='******'"); LoginScreen l = new LoginScreen(); l.Hide(); MainWindow win = new MainWindow(); win.Show(); l.Close(); win.Main.Content = new ProfileOwner(); return(true); } else { return(false); } //else //{ // LoginScreen l = new LoginScreen(); // ("Wrong username or password..."); //} }