Form_QueryUnload in vb.net

[jmcilhinney]

I tried putting some code over here. For windows shut-down, but that did not work.

Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
 
        If osexit Then
            'Not doing anything will let the application close
            e.Cancel = True 'A windows shutdown will not shut down the app.
 
        Else
            Dim sure
            sure = MsgBox("Are you sure you want to terminate the application", MsgBoxStyle.Critical + MsgBoxStyle.YesNo)
            If sure = vbYes Then
                Application.Exit()
            Else
                e.Cancel = True 'This will cause the application to ignore the close & continue running
                'Me.Hide()
            End If
        End If
    End Sub

Help,
Abhijit

Like I said, that code will never be executed. The only place that osexit gets set to True calls Application.Exit on the next line. Application.Exit shuts down the app without raising any Form.Closing events, so the event handler containing your new bit of code is not called.