Disable beep of enter and escape key c#

c# enter beep
user1788654 picture user1788654 · Dec 19, 2012 · Viewed 21.1k times · Source

I want to disable the beep sound that i get when i press enter in a textbox. My KeyDown event is:

 private void textBox_Zakljucak_KeyDown(object sender, KeyEventArgs e)
        {

            if ((e.KeyCode == Keys.Enter) || (e.KeyCode == Keys.Tab))
            {
                Parent.SelectNextControl(textBox_Zakljucak, true, true, true, true);
            }
            else if ((e.KeyCode == Keys.Back))
            {
                textBox_Zakljucak.Select(textBox_Zakljucak.Text.Length, 0);
            }
            else if (!Regex.IsMatch(textBox_Zakljucak.Text, @"^[0-9.-]+$"))
            {
                textBox_Zakljucak.Clear();
                textBox_Zakljucak.Select(textBox_Zakljucak.Text.Length, 0);
            }
    }

Answer

Hans Passant picture Hans Passant · Dec 19, 2012

You have to prevent the KeyPressed event from being generated, that's the one that beeps. That requires setting the SuppressKeyPress property to true. Make that look similar to:

        if ((e.KeyCode == Keys.Enter) || (e.KeyCode == Keys.Tab))
        {
            Parent.SelectNextControl(textBox_Zakljucak, true, true, true, true);
            e.Handled = e.SuppressKeyPress = true;
        }

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