protected void onGridSorting(object sender, GridViewSortEventArgs e)
    {
        DataTable dataTable = receiveInquiryList.DataSource as DataTable;

        if (dataTable != null)
        {
            DataView dataView = new DataView(dataTable);
            dataView.Sort = e.SortExpression + " DESC";// +ConvertSortDirectionToSql(e.SortDirection);

            receiveInquiryList.DataSource = dataView;
            receiveInquiryList.DataBind();
        }
        else
        {
            Debug.WriteLine("Table is null");
        }
    }