Question

I am using a combobox without the dropdown to accept text input only. On the windows form I have an OK button which calls a function that uses the combobox.Text property.

The problem is that I want to call this function when the user types something then hits ENTER. I am trying to handle the KeyDown event (I have tried other events with much the same results) but I find that combobox.Text is null after this is fired. I want something like this to work ideally:

private void cbox_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyValue == 13)
        {
            OK(cbox.Text); 
        }
    }  

Why is combobox.Text wiped after the KeyDown event? This same problem wouldn’t happen with a Textbox right? I’m nearly desperate enough but I don’t want to replace this box on every form in the program lol… Please advise!

Answer 1

Do you have more than one ComboBox on your form? The event is for cbox but you are getting the text result from cbo.

I would suggest changing you code to this:

private void cbox_KeyDown(object sender, KeyEventArgs e)
{
     if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Return)
     {
          string result = cbox.Text;
     }
}