private void button1_Click(object sender, System.EventArgs e) { string login = loginBX.Text; string password = passBX.Text; string MyConString = "SERVER=localhost;" + "DATABASE=baza;" + "UID=root;"; MySqlConnection connection = new MySqlConnection(MyConString); string command = "select ID, posada from pracownicy where login='******' and haslo='" + password + "';"; MySqlDataAdapter da = new MySqlDataAdapter(command, connection); DataTable dt = new DataTable(); da.Fill(dt); if (dt.Rows.Count > 0) { if (Convert.ToInt32(dt.Rows[0][1]) == 1) { Serw serw = new Serw(login); serw.Show(); this.Hide(); } else { Admin admin = new Admin(); admin.Show(); this.Hide(); } } }