UpdatePanel, Repeater and InitializeComponent()

Question

This is the code that works with the repeater

<asp:Repeater ID="repBugs" runat="server">
  <HeaderTemplate>
    <table class="DataTable" border="0" cellpadding="2" cellspacing="0" style="width: 100%">
      <tr>
        <td class="CellNameButton">
          <asp:LinkButton ID="hlDescription" runat="server" CssClass="CasualBold" OnClick="hlDescription_Click">Short title of task</asp:LinkButton>&nbsp;
          <asp:Image ID="imgDescription_Sort" runat="server"></asp:Image>
        </td>
      </tr>
  </HeaderTemplate>
  <ItemTemplate>
    <td class="CellValue">
      <p class="casual">
        <a href="task.aspx?ID=<%# ((System.Data.DataRowView)Container.DataItem)[" Task_ID "]%>">
          <%# string.Format("{0:#,##0}",((System.Data.DataRowView)Container.DataItem)["Title"])%>
        </a>
      </p>
    </td>
  </ItemTemplate>
  <FooterTemplate>
    </table>
  </FooterTemplate>
</asp:Repeater>

and this is the code behind:

override protected void OnInit(EventArgs e) {
  InitializeComponent();
  base.OnInit(e);
}
private void InitializeComponent() {
  this.repBugs.ItemDataBound += new System.Web.UI.WebControls.RepeaterItemEventHandler(this.repBugs_ItemDataBound);
}
private void repBugs_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e) {
//code
}

Now that asp code is different and uses an UpdatePanel. Now since I've been using UpdatePanel and since the code was changed and when I leave the same code behind it throws me an error on this part (this.repBugs.ItemDataBound += new System.Web.UI.WebControls.RepeaterItemEventHandler(this.repBugs_ItemDataBound);) and this error was written to me: UpdatePanel does not contain a definition for ItemDataBound. What should i put instead of this ItemDataBound?