private void UpdateClassBtn1(object sender, EventArgs e) { DBConnection.Instance().OpenConnection(); // Xác Định kết nối đến DB string name = classUpdateName.Text; int floor = Int32.Parse(classUpdateFloor.Text); int capicity = Int32.Parse(classUpdateCapitity.Text); string description = classUpdateDescription.Text; StdClass class1 = new StdClass(name, floor, capicity, description); var sqlQuery = "UPDATE `stdclass` " + "SET `name`=@name,`floor`=@floor,`MaxCapicity`=@capicity,`Ddescription`=@description" + " WHERE `name`=@location"; var cmd = new MySqlCommand(sqlQuery, DBConnection.Instance().Connection); cmd.Parameters.AddWithValue("@name", class1.Name); cmd.Parameters.AddWithValue("@floor", class1.Floor); cmd.Parameters.AddWithValue("@capicity", class1.MaxCapicity); cmd.Parameters.AddWithValue("@description", class1.Description); cmd.Parameters.AddWithValue("@location", originClassName.Text); cmd.ExecuteNonQuery(); DBConnection.Instance().CloseConnection(); MessageBox.Show("Updated"); updateForm.onUpdate(); Close(); }
private void button_add(object sender, EventArgs e) { DBConnection.Instance().OpenConnection(); // Xác Định kết nối đến DB string name = className.Text; int floor = Int32.Parse(classFloor.Text); int capicity = Int32.Parse(classCapitity.Text); string description = classDescription.Text; StdClass class1 = new StdClass(name, floor, capicity, description); var sqlQuery = "INSERT INTO `stdclass`(`name`, `floor`, `MaxCapicity`, `Ddescription`) " + "VALUES " + "(@name,@floor,@capicity,@description)"; var cmd = new MySqlCommand(sqlQuery, DBConnection.Instance().Connection); cmd.Parameters.AddWithValue("@name", class1.Name); cmd.Parameters.AddWithValue("@floor", class1.Floor); cmd.Parameters.AddWithValue("@capicity", class1.MaxCapicity); cmd.Parameters.AddWithValue("@description", class1.Description); cmd.ExecuteNonQuery(); DBConnection.Instance().CloseConnection(); showStdClass(); MessageBox.Show("Add!!!"); }