public void SearchQuantiy()
        {
            int stateid = int.Parse(cmbState.SelectedValue.ToString());
            int brandid = int.Parse(cmbBrand.SelectedValue.ToString());
            int areaid  = int.Parse(cmbArea.SelectedValue.ToString());
            int groupid = int.Parse(cmbGroup.SelectedValue.ToString());

            cr.LoadHomeModelQuantity(stateid.ToString(), areaid.ToString(), groupid.ToString(), brandid.ToString());
            dataGrid1.DataContext = cr.HomeModelQty;
        }