Child repeater don't get updated on button click of parent repeater in updatepanel. It got effected after another postback

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C#

UpdatePanel

repeater

on the button named "cmdSubmitCommentInRestReply" click of it, i want to change the data of child repeater of "rptRestaurantReviewReply",
but it got affected after another postback.

thanks in advance, and sorry if it seems you messy code.

What I have tried:

<pre lang="c#">
<asp:UpdatePanel ID="upRestReview" UpdateMode="Conditional" ChildrenAsTriggers="false" runat="server">
<ContentTemplate>
<asp:Repeater ID="rptRestaurantReview" runat="server" OnItemCommand="rptRestaurantReview_ItemCommand" OnItemDataBound="rptRestaurantReview_ItemDataBound" OnItemCreated="rptRestaurantReview_ItemCreated">
<ItemTemplate>
<asp:LinkButton Text="Publish Reply" ID="lnkBtnSubmitCommentRestReview" CommandArgument='<%# Eval("intPlatformRestFeedbackID") %>' CommandName="cmdSubmitCommentInRestReply" runat="server" />
                                                                                                        
<asp:UpdatePanel ID="uprptRestaurantReviewReply" UpdateMode="Always" runat="server">
<ContentTemplate>
<asp:Repeater ID="rptRestaurantReviewReply" runat="server" OnItemCommand="rptRestaurantReviewReply_ItemCommand">
<ItemTemplate>
                                                                                                    <asp:Label Text='<%# Eval("strCountTime") %>' ID="lblFeedbackReplyTimeago" runat="server" />
</ItemTemplate>
</asp:Repeater>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="lnkBtnSubmitCommentRestReview" />
</Triggers>
</asp:UpdatePanel>
</ItemTemplate>
</asp:Repeater>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="rptRestaurantReview" />
<asp:AsyncPostBackTrigger ControlID="btnDoneRestFeedback" />
</Triggers>
</asp:UpdatePanel></pre>