private void runQuery() { string username = user.Text; string password = pass.Text; if (username == "" || password == "") { MessageBox.Show("Incorrect Username or Password"); return; } string query = "Select * From user"; string sqlConn = "datasource=127.0.0.1;port=3306;username=root;password=;database=CDMS"; MySqlConnection dataConn = new MySqlConnection(sqlConn); MySqlCommand cmdDatabase = new MySqlCommand(query, dataConn); try { dataConn.Open(); MySqlDataReader sqlReader = cmdDatabase.ExecuteReader(); bool flag = false; if (sqlReader.HasRows) { while (sqlReader.Read()) { //MessageBox.Show(sqlReader.GetString(3)); if (sqlReader.GetString(3) == username && sqlReader.GetString(4) == password) { flag = true; OrderItems obj1 = new OrderItems(); obj1.Show(); this.Hide(); } } if (flag == false) { MessageBox.Show("Incorrect Username or Password"); return; } } } catch (Exception e) { MessageBox.Show("Query Error", e.Message); } }