private void button4_Click(object sender, EventArgs e) { this.Hide(); ShowUsr frm = new ShowUsr(); frm.Show(); }
public void btnLogIn_Click(object sender, EventArgs e) { connect DB = new connect(); DataTable table = new DataTable(); MySqlDataAdapter adapter = new MySqlDataAdapter(); DB.openConnection(); MySqlCommand command = new MySqlCommand("SELECT `id_user`,`password` FROM `user_info` WHERE `login`=@login AND `password`=@password ", DB.getConnection()); command.Parameters.Add("@login", MySqlDbType.VarChar).Value = inputLogin1.Text; command.Parameters.Add("@password", MySqlDbType.VarChar).Value = inputPassword1.Text; MySqlDataReader reader = command.ExecuteReader(); while (reader.Read()) { User_info.id_user = String.Format("{0}", reader[0]); User_info.password_user = String.Format("{0}", reader[1]); } DB.closeConnection(); adapter.SelectCommand = command; adapter.Fill(table); if (table.Rows.Count > 0) { this.Hide(); ShowUsr Main = new ShowUsr(); Main.Show(); } else { MessageBox.Show("Неверные данные"); } }