Any ideas how to stop the system bell from sounding when CTRL-A is used to select text in a Winforms application?
Here's the problem. Create a Winforms project. Place a text box on the form and add the following event handler on the form to allow CTRL-A to select all the text in the textbox (no matter which control has the focus).
void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.A && e.Modifiers == Keys.Control)
{
System.Diagnostics.Debug.WriteLine("Control and A were pressed.");
txtContent.SelectionStart = 0;
txtContent.SelectionLength = txtContent.Text.Length;
txtContent.Focus();
e.Handled = true;
}
}
It works, but despite e.Handled = true, the system bell will sound every time CTRL-A is pressed.