Function Key (F9) press in VB.NET

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Hi all visitors
i have problem with function key.
i want to use event Form_key_press.
in the code i use like this:

VB

Private Sub frmmain_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles MyBase.KeyPress

       'When press escape key will alert message box "Escape"
       If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.Escape) Then
           MsgBox("Escape")
       End If

       'When press F9 key alert empty message
       If e.KeyChar = Microsoft.VisualBasic.ChrW(Keys.F9) Then
           MsgBox("F9")
       End If
   End Sub

Does anybody know how i can consider the function key in code?

Best Regards,
TONY

Posted 15-Aug-11 18:09pm

soeun tony

Updated 15-Aug-11 18:37pm

Tarun.K.S

v2

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Prerak Patel · Answer 1 · 2011-08-15T18:51:00

Solution 1

Use KeyDown event

VB

Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
  If e.KeyCode = Keys.F9 Then
    MsgBox("f9")
  End If
End Sub

Posted 15-Aug-11 18:51pm

Prerak Patel

Updated 15-Aug-11 19:16pm

v3

Comments

soeun tony 16-Aug-11 1:03am

Thanks for your reply
Do you mean use Form_KeyDown Event?
I use keyDown Event but i don't see e.keyChar.
what property should i use?

Best Regards,

Prerak Patel 16-Aug-11 1:17am

My mistake, I pasted the wrong code. Use KeyCode as in answer.

Toniyo Jackson 16-Aug-11 3:45am

Correct 5!

soeun tony 16-Aug-11 21:09pm

Thanks for your reply
Now it is ok now
i use the same that you said above
Thanks

Prerak Patel 16-Aug-11 23:41pm

You are welcome. So, now you can mark it as answer.

rrrer · Answer 2 · 2011-08-15T20:35:00

<br />
<br />
Use KeyUp Event<br />
<pre lang="vb"><br />
Imports System.Windows.Forms.KeyPressEventArgs<br />
<br />
  Private Sub demo_keyup(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyUp<br />
    If e.KeyCode = Keys.F1 Then<br />
      MsgBox("f1:HELP")<br />
<br />
    End If<br />
  End Sub<br />
</pre><br />
<br />
 This is another format to using keyup functionality .<br />
   <br />