private void ItemsGrid_Delete(object sender, DataGridCommandEventArgs e)
        {
            if (_ShippingMethodDto != null)
            {
                int id = Int32.Parse(((DataGrid)sender).DataKeys[e.Item.ItemIndex].ToString());
                ShippingMethodDto.ShippingMethodCaseRow row = _ShippingMethodDto.ShippingMethodCase.FindByShippingMethodCaseId(id);
                if (row != null)
                {
                    row.Delete();
                }
            }

            BindItemsGrid();
        }