datalist分页

private static string MyConnString = ConfigurationManager.AppSettings["SqlConnectionString"].ToString();
    SqlConnection MyConn;

    int PageSize, RecordCount, PageCount, CurrentPage;

    protected void Page_Load(object sender, EventArgs e)
    {
        //设定PageSize 
        PageSize = 6;
        MyConn = new SqlConnection(MyConnString);
        MyConn.Open();
        //第一次请求执行 
        if (!Page.IsPostBack)
        {

            CurrentPage = 0;
            ViewState["PageIndex"] = 0;
            //计算总共有多少记录
            RecordCount = CalculateRecord();
            lblRecordCount.Text = RecordCount.ToString();
            //计算总共有多少页 
            if (RecordCount < PageSize)
                PageCount = 1;

            if (RecordCount % PageSize == 0)
                PageCount = RecordCount / PageSize;

            else
                PageCount = RecordCount / PageSize + 1;

            lblPageCount.Text = PageCount.ToString();
            ViewState["PageCount"] = PageCount;

            ListBind();
        }
    }

    //计算总共有多少条记录 
    public int CalculateRecord()
    {
        int intCount;
        string strCount = "select count(*) as co from album where album_UserId=" + Convert.ToInt32(Session["user_Id"]);
        SqlCommand MyComm = new SqlCommand(strCount, MyConn);
        SqlDataReader dr = MyComm.ExecuteReader();
        if (dr.Read())
        {
            intCount = Int32.Parse(dr["co"].ToString());
        }
        else
        {
            intCount = 0;
        }
        dr.Close();
        return intCount;
    }

    ICollection CreateSource()
    {
        int StartIndex;

        //设定导入的起终地址 
        StartIndex = CurrentPage * PageSize;
        string strSel = "select * from album where album_UserId=" + Convert.ToInt32(Session["user_Id"]);
        DataSet ds = new DataSet();

        SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel, MyConn);
        MyAdapter.Fill(ds, StartIndex, PageSize, "album");

        return ds.Tables["album"].DefaultView;
    }

    public void ListBind()
    {
        this.ibtnPrev.ImageUrl = "~/userImg/toolbarMovePrev.gif";
        this.ibtnNext.ImageUrl = "~/userImg/toolbarMoveNext.gif";
        this.DataList1.DataSource = CreateSource();
        this.DataList1.DataBind();

        this.ibtnNext.Enabled = true;
        this.ibtnPrev.Enabled = true;
        if (CurrentPage == PageCount-1)
        {
            this.ibtnNext.ImageUrl = "~/userImg/toolbarMoveNextDisabled.gif";
            this.ibtnNext.Enabled = false;
        }
        if (CurrentPage == 0)
        {
            this.ibtnPrev.ImageUrl = "~/userImg/toolbarMovePrevDisabled.gif";
            this.ibtnPrev.Enabled = false;
        }
        lblCurrentPage.Text = (CurrentPage+1).ToString();

    }

    public void Page_OnClick(Object sender, CommandEventArgs e)
    {
        CurrentPage = (int)ViewState["PageIndex"];
        PageCount = (int)ViewState["PageCount"];

        string cmd = e.CommandName;
        //判断cmd，以判定翻页方向 
        switch (cmd)
        {
            case "next":
                if (CurrentPage < PageCount-1)
                    CurrentPage++;
                break;
            case "prev":
                if (CurrentPage > 0)
                    CurrentPage--;
                break;
        }

        ViewState["PageIndex"] = CurrentPage;

        ListBind();

    }

html页面按钮代码中要加入：
<asp:ImageButton ID="ibtnNext" runat="server" CommandName="next" ImageUrl="~/userImg/toolbarMoveNext.gif"
                                            OnCommand="Page_OnClick" />