KeyDown event

[venerable bede]

I have the following code in an attempt to capture the DEL key.

private void desktopThumbs_KeyDown(object sender, KeyEventArgs e)
{
   if (e.KeyCode == Keys.Delete)
   {
      MessageBox.Show("DELETE HIT - KeyDown");
    }
}

I can trap the HOME, PAGEUP and PAGEDOWN keys but the DEL key does nothing.
However if I hit SHIFT & DEL it does get caught.

Any Ideas whats happening. I don't understand why I have to hit shift.


Thanks In Advance

[gep13]

Hey,

You have to be careful here, are you hitting the Delete Key, or are you hitting the Backspace key. Both result in different KeyCodes.

I have used the code that you have posted above, and it works as expected when I hit the Delete key.

Try just doing:

MessageBox.Show(e.KeyCode);

In the KeyDown Handler to see what KeyCode is being used.

Gary

[venerable bede]

I followed your advice and tried :

private void desktopThumbs_KeyDown(object sender, KeyEventArgs e)
{
      MessageBox.Show("DELETE HIT - KeyDown");
}
}

Believe it or not the DEL key does nothing at all. I need to hit the shift key with it.

[gep13]

That seems very strange!!

What keyboard layout are you using? I hit the delete key (without the shift key) and it triggers the keydown event, with a KeyCode of 46, as expected.

Gary

[venerable bede]

Dell

I tried running the code on another machine here at work and it does the same thing.

Insane

[gep13]

Hey,

By keyboard layout, I meant within Windows. i.e. I use English (United Kingdom), but I was wondering if maybe you use a layout such as Dvorak, that alters the keys, in which case the Delete key has a different function.

Gary

[venerable bede]

Nope.

There's nothing extraordinary with my setup.

This is NUTS

[gep13]

Hey,

Using this code:

private void desktopThumbs_KeyDown(object sender, KeyEventArgs e)
{
      MessageBox.Show(e.KeyValue.ToString());
}

Do you not get a MessageBox with 16 in it when you hit shift? That is what I get.

I think there is something going on that you are not mentioning.

What is the exact code you are using?

Gary

[danasegarane]

This works well for me ?

Private Sub TextBox3_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox3.KeyDown
        If e.KeyCode = Keys.Delete Then
            MessageBox.Show("delete")
        End If
    End Sub

[gep13]

Yip, that is what works for me as well. I am sure there is something that the OP is not telling us.

Gary

[venerable bede]

When I hit the SHIFT key I get the keyvalue of 16. If while holding that same SHIFT key down I also hit the DELETE key I get the keyvalue 46.

The problem is that when I hit just the DEL key I get nothing.


AAAARRRGGGHHHH

[gep13]

Again, that doesn't make any sense.

Did you say that you tried this on another machine?

Can you post all the code that you are using, or is this part of a larger application?

Gary

[venerable bede]

I just created a brand new Windows project, dropped a textbox on it and wired up the KEYDOWN event and it worked fine.

Something in my massive application must be hogging the DEL key. Now I have to find it.

Christ :-(

[venerable bede]

VICTORY.

The DEL key was bound to a shortcut menu on my parent form.

What a funky Munky !!!

[gep13]

Woo Hoo!!! Glad you got it working.

Remember to follow the links in my signature to mark the thread as resolved.