KeyUp event works in first winform, but not in second, why?

I have a winform program where I am trying to include PF functionality in tandem with button/mouse-click functionality. On the first screen that opens in the application, the keyup event works. I changed the KeyPreview property to True and wrote the following code:

Private Sub Vehicle_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyUp
    If e.KeyCode = Keys.F1 Then
        CarrierOn = True
        Call Display_CarrierDetail_Screen()
    ElseIf e.KeyCode = Keys.F9 Then
        Call Display_History_Screen()
    ElseIf e.KeyCode = Keys.F6 Then
        Call Display_County_Screen()
    ElseIf e.KeyCode = Keys.F5 Then
        Call Instant_Observation("Vehicle")
    End If

End Sub

The above works.

However, on opening the second form, I wrote very similar code, also changed that form's keypreview property to True, and tested the PF key - nothing happens.

Why would it work on the first form, but not on the second? The second does have the focus when I am pressing the PF key.

Thank you, laurie

ansaurus

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KeyUp event works in first winform, but not in second, why?

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