Stop the ‘Ding’ when pressing Enter
It works for me: private void textBox1_KeyDown(object sender, KeyEventArgs e) { //Se apertou o enter if (e.KeyCode == Keys.Enter) { //enter key is down this.doSomething(); e.Handled = true; e.SuppressKeyPress = true; } } The SuppressKeyPress is the really trick. I hope that help you.