How to find a DataList item index on Children control Event

This code explain how to find DataList item index on child control event.

<asp:DataList ID="dlCommentList" runat="server" Width="90%" OnItemDataBound="dlCommentList_ItemDataBound"

RepeatDirection="Vertical" DataKeyField="Id" HorizontalAlign="Center">

<ItemTemplate>

<asp:Button ID="btnShowrating" runat="server" Text="Rating" OnClick="btnShowrating_Click"

CommandArgument='<%# Eval("Id") %>' />

ItemTemplate>

asp:DataList>

protected void btnShowrating_Click(object sender, EventArgs e)

{

Button btn = (Button)sender;

DataListItem item = (DataListItem)btn.NamingContainer;

Panel panel = (Panel)dlCommentList.Items[item.ItemIndex].FindControl("panelRating");

}