public void sortMem() { member temp = null; for (int i = 0; i < members.Count; i++) { for (int j = 0; j < members.Count - 1; j++) { if (members[j].score < members[j + 1].score) { temp = members[j + 1]; members[j + 1] = members[j]; members[j] = temp; } } } }
private void buttonLogin_Click(object sender, EventArgs e) { DB db = new DB(); String username = textboxUsername.Text; String password = textboxPassword.Text; var account = new member(username, password); DataTable table = new DataTable(); MySqlDataAdapter adapter = new MySqlDataAdapter(); MySqlCommand command = new MySqlCommand("SELECT * FROM `users` WHERE `username` = @usn and `password` = @pass", db.GetConnection()); command.Parameters.Add("@usn", MySqlDbType.VarChar).Value = username; command.Parameters.Add("@pass", MySqlDbType.VarChar).Value = password; adapter.SelectCommand = command; adapter.Fill(table); //Mengecek bahwa user ada dalam database atau tidak. if (table.Rows.Count > 0) { MessageBox.Show(string.Format("Hello, {0}", username)); Usermenu usermenu = new Usermenu(); this.Hide(); usermenu.Show(); } else { if (username.Trim().Equals("")) { MessageBox.Show("Enter Username."); } else if (password.Trim().Equals("")) { MessageBox.Show("Enter Password."); } else { MessageBox.Show("Wrong username or password."); } } }