private void PopulateMonthAndYear()
        {
            cboMonth.ItemsSource = ClsPEZAData.GenerateMonth().DefaultView;

            cboYear.Items.Clear();

            for (int i = DateTime.Now.Year; i >= 2000; i--)
            {
                cboYear.Items.Add(i.ToString());
            }

            cboMonth.SelectedValue = DateTime.Now.Month;

            cboYear.SelectedItem = DateTime.Now.Year.ToString();
        }