keydown event won't fire

[ershn]

Hello.
I'm writing a windows mobile 2003 project for smartphone in vb.net. Using vs2003 compact framework 1.0. In most attempts on my forms I cannot get the keydown event to fire. I'm basically trying to check and uncheck checkboxes using the number keys. Here is a typical sub I'm using:

Private Sub SelectExCombo_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
 
        If (e.KeyCode = System.Windows.Forms.Keys.Up) Then
            If CheckBox1.Focused Then
                Panel1.BackColor = color.white
                Panel2.BackColor = Color.Blue
                CheckBox9.Focus()
                GoTo handled
            ElseIf CheckBox9.Focused = True Then
                Panel1.BackColor = Color.Blue
                Panel2.BackColor = color.white
                CheckBox1.Focus()
                GoTo handled
            End If
        End If
 
        If (e.KeyCode = System.Windows.Forms.Keys.D1) Then
            If CheckBox1.Focused Then
                If CheckBox1.CheckState = CheckState.Unchecked Then
                    CheckBox1.CheckState = CheckState.Checked
                ElseIf CheckBox1.CheckState = CheckState.Checked Then
                    CheckBox1.CheckState = CheckState.Unchecked
                    GoTo handled
                End If
            ElseIf CheckBox9.Focused Then
                If CheckBox9.CheckState = CheckState.Unchecked Then
                    CheckBox9.CheckState = CheckState.Checked
                ElseIf CheckBox9.CheckState = CheckState.Checked Then
                    CheckBox9.CheckState = CheckState.Unchecked
                    GoTo handled
                End If
            End If
        End If
 

Any guidance would be greatly appreciated.
ershn

[RedSon]

Hello.
I'm writing a windows mobile 2003 project for smartphone in vb.net. Using vs2003 compact framework 1.0. In most attempts on my forms I cannot get the keydown event to fire. I'm basically trying to check and uncheck checkboxes using the number keys. Here is a typical sub I'm using:

Private Sub SelectExCombo_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
 
        If (e.KeyCode = System.Windows.Forms.Keys.Up) Then
            If CheckBox1.Focused Then
                Panel1.BackColor = color.white
                Panel2.BackColor = Color.Blue
                CheckBox9.Focus()
                GoTo handled
            ElseIf CheckBox9.Focused = True Then
                Panel1.BackColor = Color.Blue
                Panel2.BackColor = color.white
                CheckBox1.Focus()
                GoTo handled
            End If
        End If
 
        If (e.KeyCode = System.Windows.Forms.Keys.D1) Then
            If CheckBox1.Focused Then
                If CheckBox1.CheckState = CheckState.Unchecked Then
                    CheckBox1.CheckState = CheckState.Checked
                ElseIf CheckBox1.CheckState = CheckState.Checked Then
                    CheckBox1.CheckState = CheckState.Unchecked
                    GoTo handled
                End If
            ElseIf CheckBox9.Focused Then
                If CheckBox9.CheckState = CheckState.Unchecked Then
                    CheckBox9.CheckState = CheckState.Checked
                ElseIf CheckBox9.CheckState = CheckState.Checked Then
                    CheckBox9.CheckState = CheckState.Unchecked
                    GoTo handled
                End If
            End If
        End If
 

Any guidance would be greatly appreciated.
ershn

I dont know anything about VB but I do know a bit about WM programming. The way that all windows OSs work is by sending your application messages. I assume that in VB KeyEventArgs is similar to the wParams and lParams that are sent in a C/C++ application. I would think that in order to be in line with the Microsoft framework you would want a sub that is like

 Private Sub HandleExCombo_Message(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs)

Then you can look at e and sender and figure out what message you need to handle in a large case or if...then chain.

What other information can you get from the e object?

[ershn]

Thank you for your reply.
I haven't been able to find any info that allows me to quantify or control e other than passing it as a generic event argument. What is strange is I have written this app for wm5 and it works fine. Also strange is that, while the app does not respond to the down arrow, it does respond to the up arrow key by tabbing throught the checkbox controls in one of the panels. The arrow keys are causing an event to fire but not the sub I have written by hand.