Converting it to VB

Just to tie the previous two blog posts together, I copied the C# into Instant VB and here is what it spit out (line break added to fit)

Private Sub AnyPropertyCheckBox_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
    Dim isVisible As Nullable(Of Boolean) = Not AnyPropertyCheckBox.IsChecked
    For Each uie As UIElement In LayoutRoot.Children
        Dim cb As CheckBox = TryCast(uie, CheckBox)
        If cb IsNot Nothing Then
            If cb.Tag IsNot Nothing AndAlso cb.Tag.ToString().ToUpper() = "SEARCHCRITERIA" Then
                cb.Visibility = If(isVisible.GetValueOrDefault() = True, _
                    Visibility.Visible, Visibility.Collapsed)
            End If ' end if tag match
        End If ' end if check box
    Next uie ' end for each element
End Sub ' end method