DataList中的分页中首页、下一页、上一页、末页功能 怎么写？

Question

  DataList中的分页中首页、下一页、上一页、末页功能 怎么写？ DataList中的分页中首页、下一页、上一页、末页功能 怎么写？ 

Answer 1

这个网上的解决方案太多了，先搜一下吧可以用陕北吴起娃的ASPNETPager

Answer 2

这个是我写的datalist分页代码,已经分装成控件.需要传的参数已经注释说明
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Text;namespace B2B.UC
{
    public partial class UCPaged : System.Web.UI.UserControl
    {
        #region 属性组
        /// <summary>
        /// 源数据源
        /// </summary>
        private ArrayList objAL;
        public ArrayList ObjAL
        {
            get { return objAL; }
            set { objAL = value; }
        }        /// <summary>
        /// 源数据控件
        /// </summary>
        private DataList objDl;
        public DataList ObjDl
        {
            get { return objDl; }
            set { objDl = value; }
        }        /// <summary>
        /// 源页面
        /// </summary>
        private string pageName;
        public string PageName
        {
            get { return pageName; }
            set { pageName = value; }
        }        /// <summary>
        /// url参数哈希表
        /// </summary>
        private Hashtable parmHt;
        public Hashtable ParmHt
        {
            get { return parmHt; }
            set { parmHt = value; }
        }        /// <summary>
        /// 每页显示数
        /// </summary>
        private int pageSize;
        public int PageSize
        {
            get
            {
                if (pageSize == null && pageSize <= 0)
                {
                    return 10;
                }
                else
                {
                    return pageSize;
                }
            }
            set { pageSize = value; }
        }
        #endregion        protected void Page_Load(object sender, EventArgs e)
        {
            bindPagedData(objAL, objDl);
        }        /// <summary>
        /// 获得分页url参数和源页面
        /// </summary>
        /// <param name="sourceHT"></param>
        /// <returns></returns>
        private StringBuilder getParmHT(Hashtable sourceHT)
        {
            StringBuilder parmStr = new StringBuilder();
            parmStr = parmStr.Append(pageName);
            parmStr = parmStr.Append("?");
            if (sourceHT != null && sourceHT.Count > 0)
            {
                foreach (DictionaryEntry de in sourceHT)
                {
                    parmStr = parmStr.Append(de.Key);
                    parmStr = parmStr.Append("=");
                    parmStr = parmStr.Append(de.Value);
                    parmStr = parmStr.Append("&");
                }            }
            return parmStr;
        }        /// <summary>
        /// 绑定分页数据
        /// </summary>
        private void bindPagedData(ArrayList objAL, DataList sourceDL)
        {            if (objAL != null && objAL.Count != 0)
            {
                PagedDataSource pds = new PagedDataSource();
                pds.DataSource = objAL;
                pds.AllowPaging = true;
                pds.PageSize = pageSize;
                int icplIndex = 1;
                if (!String.IsNullOrEmpty(Request.QueryString["page"]))
                {
                    icplIndex = int.Parse(Request.QueryString["page"]);
                }
                if (icplIndex < 1)
                {
                    icplIndex = 1;
                }
                if (icplIndex > pds.PageCount)
                {
                    icplIndex = pds.PageCount;
                }
                ltrl_page.Text = WritePage(pds).ToString();
                pds.CurrentPageIndex = icplIndex - 1;
                sourceDL.DataSource = pds;
                sourceDL.DataBind();
            }
        }
        /// <summary>
        /// 写出页码
        /// </summary>
        private StringBuilder WritePage(PagedDataSource pds)
        {
            StringBuilder page = new StringBuilder();
            int pageID = 1;
            int StartpageID = 1;
            int TenpageID = 1;            if (!String.IsNullOrEmpty(Request["page"])) Int32.TryParse(Request["page"], out pageID);
            if (!String.IsNullOrEmpty(Request["Startpage"])) Int32.TryParse(Request["Startpage"], out StartpageID);
            if (!String.IsNullOrEmpty(Request["tenpage"])) Int32.TryParse(Request["tenpage"], out TenpageID);            if (pageID < 1) pageID = 1;
            if (pageID > pds.PageCount) pageID = pds.PageCount;            StringBuilder parStr = getParmHT(parmHt);
            if (!parStr.Equals(""))
            {
                page = page.Append("<div class='pagesL'>");
                page = page.Append("<a href='" + parStr + "page=1&tenpage=1'>第一页</a> | ");
                page = page.Append("<a href='" + parStr + "page=" + pds.PageCount.ToString() + "&tenpage=" + Convert.ToString(Math.Floor(Convert.ToDouble(pds.PageCount / 10)) + 1) + "'>最后一页</a>");
                page = page.Append("</div>");
                page = page.Append("<div class='pages'>");
                //按照十页一分来处理
                if (pageID > 10)
                {
                    page = page.Append("<a href='" + parStr + "page=" + Convert.ToString(TenpageID - 10) + "&tenpage=" + Convert.ToString(TenpageID - 1) + "' >上十页</a>");
                }
                if (pageID <= TenpageID * 10)
                {
                    //范围内
                    for (int i = (TenpageID - 1) * 10 + 1; i <= (TenpageID * 10 > pds.PageCount ? pds.PageCount : 10); i++)
                    {
                        if (i == pageID)
                        {
                            page = page.Append("<span>" + Convert.ToString(i) + "</span>");
                        }
                        else
                        {
                            page = page.Append("<a href='" + parStr + "page=" + Convert.ToString(i) + "&tenpage=" + Convert.ToString(TenpageID) + "'>" + Convert.ToString(i) + "</a>");
                        }
                    }
                }
                if (TenpageID * 10 < pds.PageCount)
                {
                    page = page.Append("<a href='" + parStr + "page=" + Convert.ToString(TenpageID + 10) + "&tenpage=" + Convert.ToString(TenpageID + 1) + "' >下十页 </a>");
                }
                page = page.Append("</div><div class='clear'></div>");
            }
            return page;
        }    }
}

Answer 3

其实只要写个类生成分页段HTML代码就可以，也可使用分页控件，实现方法都一样

Answer 4

//前台   
<table id="page" width="100%">
        <tr align="center">
            <td>
                <asp:Label ID="lblCurPage" runat="server"></asp:Label>
                &nbsp;&nbsp;
                <asp:Label ID="lblEachPage" runat="server"></asp:Label>
                <asp:Label ID="lblTnum" runat="server"></asp:Label>
                &nbsp;&nbsp;
                <asp:HyperLink ID="lnkFirst" runat="server">&nbsp;第一页&nbsp;</asp:HyperLink>
                <asp:HyperLink ID="lnkPrev" runat="server">&nbsp;上一页&nbsp;</asp:HyperLink>
                <asp:HyperLink ID="lnkNext" runat="server">&nbsp;下一页&nbsp;</asp:HyperLink>
                <asp:HyperLink ID="lnkLast" runat="server">&nbsp;最后页&nbsp;&nbsp;&nbsp;</asp:HyperLink>
                到:<asp:TextBox ID="txtPage" runat="server" Width="32px"></asp:TextBox>
                页<asp:Button ID="btnPage" runat="server" OnClick="btnPage_Click" Text="Go" Width="32px" /></td>
        </tr>
    </table>
//cs文件
   /// <summary>
    /// News 的摘要说明。
    /// 分页。
    /// </summary>
    public static int TotalPage;//定义变量来保存总页数
    public int CurPage;//定义变量来保存当前页索引
    public int Tnum;//总条数;
    public int EachPage;//每页总条数protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            this.Newfillgv();
        }
    }  public void Newfillgv()
    {
        SqlConnection scon = new SqlConnection(EP.GetConStr()); //调用Web.config连接数据库
        scon.Open();//打开数据库连接
        string SqlStr = "select * from News order by time"; //数据库连接字符串
        SqlDataAdapter da = new SqlDataAdapter(SqlStr, scon);
        DataSet ds = new DataSet();
        da.Fill(ds, "Table");
        PagedDataSource objPage = new PagedDataSource();//创建分页类
        objPage.DataSource = ds.Tables["Table"].DefaultView;//设置数据源
        objPage.AllowPaging = true;
        objPage.PageSize = 8;        if (Request.QueryString["Page"] != null)
        {
            CurPage = Convert.ToInt32(Request.QueryString["Page"]);
            CurPage = Math.Min(CurPage, objPage.PageCount);
            CurPage = Math.Max(CurPage, 1);
        }
        else            CurPage = 1;
        objPage.CurrentPageIndex = CurPage - 1;
        TotalPage = objPage.PageCount;
        Tnum = objPage.DataSourceCount;
        EachPage = objPage.Count;
        lblCurPage.Text = "第 " + CurPage.ToString() + " / " + TotalPage.ToString() + " 页";
        lblTnum.Text = "共: " + Tnum + " 条记录";
        lblEachPage.Text = "每页有: " + EachPage.ToString() + " 条记录";        if (objPage.CurrentPageIndex != 0)
            lnkFirst.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(1);
        if (objPage.CurrentPageIndex != TotalPage - 1)
            lnkLast.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(TotalPage);        if (!objPage.IsFirstPage)
            lnkPrev.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage - 1);
        if (!objPage.IsLastPage)
            lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage + 1);        DlNew.DataSource = objPage;
        DlNew.DataBind();    }
    #region Web 窗体设计器生成的代码
    override protected void OnInit(EventArgs e)
    {
        //
        // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
        //
        InitializeComponent();
        base.OnInit(e);
    }    /// <summary>
    /// 设计器支持所需的方法 - 不要使用代码编辑器修改
    /// 此方法的内容。
    /// </summary>
    private void InitializeComponent()
    {    }
    #endregion    protected void btnPage_Click(object sender, System.EventArgs e)
    {
        int PageNum = 0;
        if (!Request.Form["txtPage"].Equals(""))
            PageNum = Convert.ToInt32(Request.Form["txtPage"]);
        if (PageNum <= 0 || PageNum > TotalPage)
            Response.Redirect(Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(1));
        else
            Response.Redirect(Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(PageNum));
    }
自己修改下连接数据库的代码....

Answer 5

1、自定义实现分页方法 
PagedDataSource 
<asp:DataList ID=”dlData” runat=”server” RepeatColumns=”4″ > 
<ItemTemplate> 
<asp:Label ID=”lblName” runat=”server” /> <br /> 
<asp:Label ID=”lblTime” runat=”server” /> 
</ItemTemplate> 
</asp:DataList> 
<asp:linkbutton ID=”lkPre” OnCommand=”IndexChanging” CommandArgument=”pre” runat=”server” >PREVIOUS </asp:linkbutton> 
<asp:linkbutton ID=”lkNext” OnCommand=”IndexChanging” CommandArgument=”next” runat=”server” >NEXT </asp:linkbutton> if (!IsPostBack) 
{ 
ViewState[“pageindex”] = “0″; 
//绑定数据 
} 
protected void IndexChanging(object sender, EventArgs e) 
{ 
        string strCommand = ((LinkButton)sender).CommandArgument.ToString(); 
        int pageindex = int.Parse(ViewState["pageindex"].ToString()); 
        switch(strCommand) 
        { 
            case "pre" : 
                pageindex = pageindex - 1; 
                break; 
            case "next": 
                pageindex = pageindex + 1; 
                break; 
        } 
        ViewState["pageindex"] = pageindex; 
        InitData(); 
} 
2、用第三方控件（例如AspNetPager）
http://topic.csdn.net/u/20090628/21/D2779EC7-ACA6-4553-8CD0-F2EDAA65A93E.html

Answer 6

http://topic.csdn.net/u/20091207/17/ac65d357-b669-4dc0-9221-8da344c52a34.html

Answer 7

 public void sspage()
    {        DataTable dt = new DataTable();
        dt = bll.SelectResource().Tables[0];
        //封装数据绑定控件GridView、DetailsView、FormView、DataList的与分页有关的属性，允许该控件执行分页操作
        PagedDataSource page = new PagedDataSource();
        page.DataSource = dt.DefaultView;//获取可能包含帅选试图或游标位置的表的自定义视图
        page.AllowPaging = true;
        page.PageSize = 10;//设置每页显示的数据条数        //GridView1.DataSource = page;
        //GridView1.DataBind();        //int Count = dt.Tables[0].Rows.Count;
        Label2.Text = "共" + page.PageCount.ToString() + "页";
        Label3.Text = "每页" + page.Count.ToString() + "条";
        int currentpage;
        if (Request.QueryString["ID"] != null)
        {
            currentpage = Convert.ToInt32(Request.QueryString["ID"]);
        }
        else
        {
            currentpage = 1;
        }        page.CurrentPageIndex = currentpage - 1;//获取或设置当前页的索引        Label1.Text = "当前是第" + currentpage + "页";
        //上一页
        if (!page.IsFirstPage)
        {
            HyperLink1.NavigateUrl = Request.CurrentExecutionFilePath + "?ID=" + Convert.ToString(currentpage - 1);
        }
        //下一页
        if (!page.IsLastPage)
        {
            HyperLink2.NavigateUrl = Request.CurrentExecutionFilePath + "?ID=" + Convert.ToString(currentpage + 1);
        }
        GridView1.DataSource = page;
        GridView1.DataBind();
    }