How to implement NumericFirstLast paging in the ASP.Net Repeater control

<asp:datalist cellpadding="5" repeatdirection="Horizontal" runat="server" id="dlPager" xmlns:asp="#unknown">
                        OnItemCommand="dlPager_ItemCommand">
                        <itemtemplate>
                            <asp:linkbutton enabled="<%#Eval("Enabled") %>" runat="server" id="lnkPageNo" text="<%#Eval("Text") %>">
                                CommandArgument='<%#Eval("Value") %>' CommandName="PageNo"></asp:linkbutton>
                        </itemtemplate>
                    </asp:datalist>

public List<listitem> GeneratePager(int totalRowCount, int pageSize, int currentPage)
        {
            int totalLinkInPage = 5;
            int totalPageCount = (int)Math.Ceiling((decimal)totalRowCount / pageSize);

            int startPageLink = Math.Max(currentPage - (int)Math.Floor((decimal)totalLinkInPage / 2), 1);
            int lastPageLink = Math.Min(startPageLink + totalLinkInPage - 1, totalPageCount);

            if ((startPageLink + totalLinkInPage - 1) > totalPageCount)
            {
                lastPageLink = Math.Min(currentPage + (int)Math.Floor((decimal)totalLinkInPage / 2), totalPageCount);
                startPageLink = Math.Max(lastPageLink - totalLinkInPage + 1, 1);
            }

            List<listitem> pageLinkContainer = new List<listitem>();

            if (startPageLink != 1)
                pageLinkContainer.Add(new ListItem("First", "1", currentPage != 1));
            for (int i = startPageLink; i <= lastPageLink; i++)
            {
                pageLinkContainer.Add(new ListItem(i.ToString(), i.ToString(), currentPage != i));
            }
            if (lastPageLink != totalPageCount)
                pageLinkContainer.Add(new ListItem("Last", totalPageCount.ToString(), currentPage != totalPageCount));

            return pageLinkContainer;

        } 
</listitem></listitem></listitem>

protected void dlPager_ItemCommand(object source, DataListCommandEventArgs e)
     {
         try
         {
             if (e.CommandName == "PageNo")
             {
                 pageNo = Convert.ToInt32(e.CommandArgument);
                 //Bind grid here

             }
         }
         catch (Exception ex)
         {

         }
     }