private void button2_Click(object sender, EventArgs e) { try { string myConnection = "datasource=localhost;port=3306;username=root"; MySqlConnection myConn = new MySqlConnection(myConnection); MySqlCommand SelectCommand = new MySqlCommand("select * from a1201409_dgn.users where username='******' and password ='******' ;", myConn); MySqlDataReader myReader; myConn.Open(); myReader = SelectCommand.ExecuteReader(); int count = 0; while (myReader.Read()) { count = count + 1; } if (count == 1) { MessageBox.Show("Username and password is correct"); Form4 showf4 = new Form4(); showf4.Show(); } else if (count > 1) { MessageBox.Show("Duplicate Username and password..Access Denied"); } else MessageBox.Show("Username and password is not correct..Please try again"); myConn.Close(); } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void button1_Click(object sender, EventArgs e) { //Verify If the swipe was done successfully //If the string length = 39. Then The next form will allow user to input data //Else the swipe has to be repeated. if (L == 39) { //MessageBox.Show("Valid Swipe"); //Get username int i = 1; int u_count = 0; int p_count = 0; while (i <= 4) { User[u_count] = s[i]; i++; u_count++; } //Get Password i = 12; while (i <= 17) { password[p_count] = s[i]; i++; p_count++; } //Convert arrays to string string UName = new string(User); string Pwd = new string(password); MessageBox.Show(UName + " " + Pwd); //Check database to validate user string myConnection = "datasource=localhost;port=3306;username=root"; MySqlConnection myConn = new MySqlConnection(myConnection); MySqlCommand SelectCommand = new MySqlCommand("select * from a1201409_dgn.validusers_card where UserName='******' and Password ='******' ;", myConn); MySqlDataReader myReader; myConn.Open(); myReader = SelectCommand.ExecuteReader(); int count = 0; while (myReader.Read()) { count = count + 1; } if (count == 1) { MessageBox.Show("Valid User"); Form4 showf1 = new Form4(); showf1.Show(); //Clear input string so user has to re-swipe to get access textBox1.Clear(); s = " "; } else { MessageBox.Show("Access Denied"); } } else { MessageBox.Show("Please swipe card again"); } }