Updatepanel with asyncpostbacktrigger not updating outside labels ASP.NET C#

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C#

ASP.NET

UpdatePanel

Hello Developers,
I've One GridView and In side that Two LinkButton and One Label With One DropDownList and I'm using UpdatePanel and Triggers to restrict Page Load (Refresh Page) on Button Click as you can See Code Belove

So my problem is when I use Triggers it is not a refreshing page That's what I want, but it's not updating the label <pre>lblQtyandRate

as new price and Qty and if I use

PostBackTrigger

it will refresh the page that is I don't want if anyone can Help me

What I have tried:

<pre><asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional" >
         <ContentTemplate>
             <div class="number-left">
                 <asp:LinkButton Text="-" ID="btnRemoveProduct" CommandName="RemoveItem" CommandArgument='<%#Eval("ProductID") %>' runat="server" OnClick="btnRemoveProduct_Click" />
             </div>
         </ContentTemplate>
         <Triggers>
             <asp:AsyncPostBackTrigger ControlID="btnRemoveProduct"/>
         </Triggers>
     </asp:UpdatePanel>


     <div class="number-middle">
         <asp:Label ID="lblQtyAndRate" runat="server" Text="0 / Rs. 0.00"></asp:Label>
     </div>
                                                        
    <asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Conditional"  >
        <ContentTemplate>
            <div class="number-right">
                <asp:LinkButton Text="+" ID="btnAddProduct" CommandName="AddItem" CommandArgument='<%#Eval("ProductID") %>' runat="server" OnClick="btnAddProduct_Click" />
            </div>
        </ContentTemplate>
        <Triggers>
            <asp:AsyncPostBackTrigger ControlID="btnAddProduct"/>
        </Triggers>
 </asp:UpdatePanel>