How to Paging Datalist or Repeater in asp.net C#?

 Here I am showing a simple but not like so :) i.e paging of a Repeater or datalist in asp.net using C#

.aspx Content
------------------
<asp:Repeater ID="rptPosts" runat="server" OnItemDataBound="rptPosts_ItemDataBound"
                            OnItemCommand="rptPosts_ItemCommand">
                            <ItemTemplate>
                          <asp:Label ID="lblSubject" runat="server" Text='<%#Eval("Subject")%>'></asp:Label>       
                            </ItemTemplate>
 </asp:Repeater>

<asp:Repeater ID="rptPages" runat="server">
                            <HeaderTemplate>
                                <table cellpadding="0" cellspacing="0" border="0">
                                    <tr>
                                        <td>
                                            <b>Page:</b>&nbsp;
                                        </td>
                                        <td>
                            </HeaderTemplate>
                            <ItemTemplate>
                                <asp:LinkButton ID="btnPage" CommandName="Page" CommandArgument="<%#
                         Container.DataItem %>" CssClass="f-anchor" runat="server"><%# Container.DataItem %>
                                </asp:LinkButton>&nbsp;
                            </ItemTemplate>
                            <FooterTemplate>
                                </td> </tr> </table>
                            </FooterTemplate>
                        </asp:Repeater>
.cs Content
----------------
private void LoadData(int topicId)
        {
            lnkDelTopic.CommandArgument = Convert.ToString(topicId);
            lnkEditTopic.CommandArgument = Convert.ToString(topicId);
            PagedDataSource pgitems = new PagedDataSource();
            pl_post objPost = new pl_post();
            objPost.TopicId = topicId;
            postList = bl_forum.GetPostListByTopicId(objPost);
            pgitems.DataSource = postList;
            pgitems.AllowPaging = true;
            pgitems.PageSize = 5;
            pgitems.CurrentPageIndex = PageNumber;

            if (pgitems.PageCount > 1)
            {
                rptPages.Visible = true;
                ArrayList pages = new ArrayList();
                for (int i = 0; i < pgitems.PageCount; i++)
                    pages.Add((i + 1).ToString());
                rptPages.DataSource = pages;
                rptPages.DataBind();

            }
            else
                rptPages.Visible = false;

            rptPosts.DataSource = pgitems;
            rptPosts.DataBind();
        }

        protected void rptPosts_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            Label lblSubject = e.Item.FindControl("lblSubject") as Label;
            if (lblSubject.Text == string.Empty)
            {
                lblSubject.Text = "Re: " + Convert.ToString(Session["TopicName"]);
            }
        }
        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            rptPages.ItemCommand +=
               new RepeaterCommandEventHandler(rptPages_ItemCommand);
        }
        void rptPages_ItemCommand(object source,
                               RepeaterCommandEventArgs e)
        {
            PageNumber = Convert.ToInt32(e.CommandArgument) - 1;
            //fillPageData();
            //fillReply();
            LoadData(Convert.ToInt32(Request.QueryString["TopicId"]));
        }
        public int PageNumber
        {
            get
            {
                if (ViewState["PageNumber"] != null)
                    return Convert.ToInt32(ViewState["PageNumber"]);
                else
                    return 0;
            }
            set
            {
                ViewState["PageNumber"] = value;
            }
        }

Will describe latter when i get some time but hope this helps you all

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