keydown event c# not working, to open a panel

Asked Apr 18 '21 at 12:57

Active Apr 18 '21 at 12:57

Viewed 36 times

I want a panel to open in my windows form when the left or right arrow is pressed.

 private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
           
                switch (e.KeyCode)
                {
                    case Keys.Control:
                        panel2.Visible = true;
                        panel1.Visible = false;
                        break;
                    case Keys.Right:
                        panel1.Visible = false;
                        panel3.Visible = true;
                        break;
                }
        
        }

asked Apr 18 '21 at 12:57

Joseph Van den Avont

1

Can you please tell us what is going wrong? I see that you have `Keys.Control` in your code. Shouldn't it be `Keys.Left`? Also you are talking about a panel but from you code I can see three. – Grizzlly Apr 18 '21 at 12:59
oh yeah I had put control to see if that would work. It didn't – Joseph Van den Avont Apr 18 '21 at 13:02
I have 3 panels – Joseph Van den Avont Apr 18 '21 at 13:02
depending on which button is pressed a different panel will be shown – Joseph Van den Avont Apr 18 '21 at 13:04
1

Do you have the event registered on the form? If not you can do so from the designer by selecting events in the properties tab. – Grizzlly Apr 18 '21 at 13:11
yes I do, still doesn't work – Joseph Van den Avont Apr 18 '21 at 13:14
Take a look [here](https://stackoverflow.com/questions/3172731/forms-not-responding-to-keydown-events). Does this solve your problem? – Grizzlly Apr 18 '21 at 13:22
Does a breakpoint in that method get hit? What is the value of e.Keycode then? – Hans Keﬆing Apr 18 '21 at 13:32
I fixed it using protected override bool ProcessCmdKey(ref Message msg, Keys keyData) – Joseph Van den Avont Apr 18 '21 at 13:47

keydown event c# not working, to open a panel

0 Answers0