Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Stop the Bell on CTRL-A (WinForms)

Tags:

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.


Thanks for the reply.

KeyPreview on the Form is set to true - but that doesn't stop the system bell from sounding - which is the problem I'm trying to solve - annoying.