handling enter press on a form

Question

Hi ,

Can someone pls suggest how to detect if the user presses enter key on his keyboard so that we can capture that event . i don't have and don't want a button(or a hidden button) for that purpose (as the size of the form is too small) .

Answer 1

Calling a method.

private void Dummy()
{
    MessageBox.Show("Test");
}
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
    if (keyData == (Keys.Enter))
    {
        Dummy();
        return true;
    }

    return base.ProcessCmdKey(ref msg, keyData);

}

Answer 2

You can use the KeyPressed event for this as described in this article: https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.control.onkeypress?view=windowsdesktop-7.0. You can use the "Keys.Enter" as the key to check.

Answer 3

By setting the form's KeyPreview property to True, you can use the form's KeyPress event to capture whether the Enter key is pressed.

However, when focus is on button, the click event takes precedence, so it cannot be detected.

Answer 4

One of the ways :

        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (keyData == Keys.Enter)
            {
                Console.Beep(5000, 10);
            }
            return base.ProcessCmdKey(ref msg, keyData);
        }

Answer 5

Calling a method

private void Duumy()
{
    MessageBox.Show("Test");
}
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
    if (keyData == (Keys.Enter))
    {

        Duumy();
        return true;
    }

    return base.ProcessCmdKey(ref msg, keyData);

}