<asp:DataList ID="DL_orders_parents" RepeatDirection="Horizontal"  runat="server" DataSourceID="SqlDataSource_order_parents"  OnItemDataBound="GV_orders_parents_RowDataBound" DataKeyField="date"  >       
        <ItemTemplate>
         <asp:Label    id="lb_date_dl" Runat="Server"  Text='<%# Eval("date") %>'   Visible="true" />   
                     <asp:GridView  ID="GV_orders_child"  ShowHeader="false"  runat="server"  AutoGenerateColumns="false">
                       <Columns>
                        <asp:TemplateField  Visible="true">
                       <ItemTemplate> 
                       <asp:Label ID="lb_region" runat="server" Value='<%# Eval("region") %>' Visible="true" > </asp:Label>                                   
                        </ItemTemplate>
                       </asp:TemplateField>
                       </Columns>
                    </asp:GridView>
        </ItemTemplate> 
        </asp:DataList>