Entire Grid view Has one Update Panel and grid view item has another Update Panel

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C#

ASP.NET

Entire Gridview has one update panel with an timer1 and gridview item has another update panel with an timer2.
timer1 interval is 10000
timer2 interval is 1000

When I was scroll down in the gridview ,there is an problem in the scrolling.

<form id="form1" runat="server">
    <div>
     <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
     <ContentTemplate>


                                                    <asp:GridView Width="80%" ID="dgLiveAuctionBid" runat="server" onrowdatabound="dgLiveAuctionBid_RowDataBound"
                                                        AutoGenerateColumns="False" GridLines="Horizontal" RowStyle-BackColor="White"  >


                                                        <Columns>

                                                            <asp:TemplateField HeaderText="Product" >
                                                                <ItemTemplate>
                                                                     <asp:Label ID="lblProduct" runat="server" Text='<%#Bind("Product")%>' Font-Bold="true"></asp:Label>
                                                                     <asp:Label ID="lblProductID" Visible="false" runat="server" Text='<%#Bind("AuctionProductID")%>'></asp:Label>

                                                                </ItemTemplate>
                                                                <ItemStyle Width="120px" HorizontalAlign="Center" />
                                                            </asp:TemplateField>
                                                            <asp:TemplateField HeaderText="Auction <br /> Timings">
                                                                 <ItemTemplate>
                                                                        <span></span><asp:Label ID="lblAuctionDate" Visible="True" runat="server" Text='<%#Bind("OnlineAuctionDate") %>' Font-Bold="true"></asp:Label>
                                                                        <br /><span> To &nbsp;</span><br /><asp:Label ID="lblAuctionTime" runat="server" Text='<%#Bind("EndTime") %>' Font-Bold="true"></asp:Label>&nbsp;
                                                                     <br />
                                                                   <asp:UpdatePanel ID="UpdatePanel2" runat="server">
                       <ContentTemplate>
                 <asp:Label ID="Label1"  runat="server"></asp:Label>
                 <asp:Timer ID="Timer3" runat="server" Interval="1000" OnTick="Timer3_Tick"></asp:Timer>
            </ContentTemplate>
              <Triggers>
                <asp:AsyncPostBackTrigger ControlID="Timer3" EventName="Tick"/>
            </Triggers>
        </asp:UpdatePanel>
                                                                 </ItemTemplate>
                                                                  <ItemStyle Width="190px" HorizontalAlign="Center" />
                                                            </asp:TemplateField>

                                                        </Columns>


                                                    </asp:GridView>

                                <div class="clear space">
                                   <asp:Timer ID="Timer1" runat="server" Interval="10000" ontick="Timer1_Tick"> </asp:Timer>

                                </div>

</ContentTemplate>
 <Triggers>
                <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick"/>
            </Triggers>
    </asp:UpdatePanel>
    </div>
    </form>