• Net通用分页(可以选择页码的显示,且有中英选择)


    using System;
    using System.Data;
    using System.Configuration;
    using System.Collections;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;

    /// <summary>
    /// 启程 通用分页类 www.letwego.cn
    /// </summary>
    public class Pageing
    {
        #region 成员

        /// <summary>
        /// 数据源 Table
        /// </summary>
        public DataTable dtblTableww = new DataTable();

        /// <summary>
        /// 每页记录数
        /// </summary>
        public int intPageSizeww = 20;

        /// <summary>
        /// 需要获取第几页的数据,从 1 开始
        /// </summary>
        public int intPageNowww = 1;

        /// <summary>
        /// 首页 显示样式
        /// </summary>
        public string strFirstww = "";

        /// <summary>
        /// 上一页 显示样式
        /// </summary>
        public string strPrevww = "";

        /// <summary>
        /// 下一页 显示样式
        /// </summary>
        public string strNextww = "";

        /// <summary>
        /// 尾页 显示样式
        /// </summary>
        public string strLastww = "";

        /// <summary>
        /// 跳转 的url链接
        /// </summary>
        public string strTurnUrlww = "";

        /// <summary>
        /// 跳转的url链接的参数前面不要加?或&
        /// </summary>
        public string strOptionww = "";


        private string strCountww = "";   //共N条信息
        private string strPageww = "";    //第N页/共N页    
        private string strTurnww;   //跳转控件

        #endregion

        #region 属性

        private int intRsCounww = 0;    //记录总数

        /// <summary>
        /// 总记录数
        /// </summary>
        public int GetRsCount
        {
            get
            {
                return this.intRsCounww;
            }
        }

        private int intPageCountww = 0; //总页数

        /// <summary>
        /// 总页数
        /// </summary>
        public int GetPageCount
        {
            get
            {
                return this.intPageCountww;
            }
        }

        private string strPageShowww = ""; //显示页码的字符串
        /// <summary>
        /// 显示页码的字符串
        /// </summary>
        public string GetPageShow
        {
            get
            {
                return this.strPageShowww;
            }
        }

        #endregion

        #region 初始构造
        /// <summary>
        /// 初始构造
        /// </summary>
        public Pageing()
        {
            //首页
            strFirstww = "";
            //上一页              
            strPrevww = "";
            //下一页               
            strNextww = "";
            //尾页               
            strLastww = "";
            //跳转控件                  
            strTurnww = "";
            //显示页码的字符串
            strPageShowww = "";
            //当前页
            intPageNowww = GetNumeric(GetRequest("Page"));

            if (intPageNowww == 0)
            {
                intPageNowww = 1;
            }
        }
        #endregion

        #region 处理分页及显示页码
        /// <summary>
        /// 分页,返回分页后的数据 Table
        /// </summary>
        /// <param name="bolCount">是否显示 共N条信息</param>
        /// <param name="bolPage">是否显示 第N页/共N页</param>
        /// <param name="bolFirst">是否显示 首页</param>
        /// <param name="bolLast">是否显示 尾页</param>
        /// <param name="bolTurn">是否显示 跳转控件</param>
        /// <param name="IsEnglish">是否 用中文显示</param>
        /// <returns>返回分页后的数据 Table</returns>
        public DataTable BeginPage(bool bolCount, bool bolPage, bool bolFirst, bool bolLast, bool bolTurn, bool IsChinese)
        {

            //记录总数
            intRsCounww = dtblTableww.Rows.Count;

            //总页数
            intPageCountww = (intRsCounww + intPageSizeww - 1) / intPageSizeww;

            //超出最大页码
            if (intPageNowww > intPageCountww)
            {
                intPageNowww = intPageCountww;
            }

            //中文分页
            if (IsChinese)
            {
                //跳转
                strTurnww = "<input value='" + intPageNowww.ToString() + "' id='txtPageGo' name='txtPageGo' type='text' style='25px;'><input name='btnGo' type='button' id='btnGo' value='跳转' onclick=""javascript:window.location.href='" + strTurnUrlww + "?page=' + document.getElementById('txtPageGo').value + '" + "&" + strOptionww + "'"">";
                //共N条信息
                strCountww = "共" + intRsCounww.ToString() + "条信息";
                //第N页/共N页
                strPageww = "第" + intPageNowww.ToString() + "页/共" + intPageCountww.ToString() + "页";

                if (strFirstww == "")
                {
                    strFirstww = "首页";
                    strPrevww = "上一页";
                    strNextww = "下一页";
                    strLastww = "尾页";
                }
            }
            else//英文文分页
            {
                //跳转
                strTurnww = "<input value='" + intPageNowww.ToString() + "' id='txtPageGo' name='txtPageGo' type='text' style='25px;'><input name='btnGo' type='button' id='btnGo' value='Goto' onclick=""javascript:window.location.href='" + strTurnUrlww + "?page=' + document.getElementById('txtPageGo').value + '" + "&" + strOptionww + "'"">";
                //共N条信息
                strCountww = "Total " + intRsCounww.ToString() + " Infos";
                //第N页/共N页
                strPageww = " " + intPageNowww.ToString() + "/" + intPageCountww.ToString() + " ";

                if (strFirstww == "")
                {
                    strFirstww = " First ";
                    strPrevww = " Previous ";
                    strNextww = " Next ";
                    strLastww = " Last ";
                }
            }


            DataTable MyTable;

            int intGetFirstRs = 0;//获取本页数据的开始下标
            int intGetLastRs = 0;//获取本页数据的结束下标

            string strFirstww2;
            string strPrevww2;
            string strNextww2;
            string strLastww2;


            //没有记录
            if (intRsCounww <= 0)
            {
                strPageShowww = strCountww;
                MyTable = dtblTableww;
            }
            //有记录
            else
            {
                //只有一页
                if (intPageCountww <= 1)
                {
                    strPageShowww = strCountww + "&nbsp;&nbsp;" + strPageww;
                    MyTable = dtblTableww;
                }
                //不止一页
                else
                {
                    //第一页
                    if (intPageNowww == 1)
                    {
                        strFirstww2 = strFirstww;
                        strPrevww2 = strPrevww;
                    }
                    else
                    {
                        strFirstww2 = "<a href=""" + strTurnUrlww + "?page=1" + "&" + strOptionww + """>" + strFirstww + "</a>";
                        strPrevww2 = "<a href=""" + strTurnUrlww + "?page=" + Convert.ToString(intPageNowww - 1) + "&" + strOptionww + """>" + strPrevww + "</a>";
                    }

                    //最后一页
                    if (intPageNowww == intPageCountww)
                    {
                        strNextww2 = strNextww;
                        strLastww2 = strLastww;
                    }
                    else
                    {
                        strNextww2 = "<a href=""" + strTurnUrlww + "?page=" + Convert.ToString(intPageNowww + 1) + "&" + strOptionww + """>" + strNextww + "</a>";
                        strLastww2 = "<a href=""" + strTurnUrlww + "?page=" + intPageCountww + "&" + strOptionww + """>" + strLastww + "</a>";
                    }

                    //----处理显示页码-----------
                    if (bolCount == true)//共N条信息
                    {
                        strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strCountww;
                    }
                    if (bolPage == true)//第N页/共N页
                    {
                        strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strPageww;
                    }
                    if (bolFirst == true) //首页
                    {
                        strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strFirstww2;
                    }
                    strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strPrevww2;//上一页
                    strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strNextww2;//下一页
                    if (bolLast == true)//尾页
                    {
                        strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strLastww2;
                    }
                    if (bolTurn == true)//跳转控件
                    {
                        strPageShowww = strPageShowww + "&nbsp;&nbsp;" + strTurnww;
                    }


                    //----处理返回数据-----------
                    intGetFirstRs = (intPageNowww - 1) * intPageSizeww;
                    intGetLastRs = intPageNowww * intPageSizeww - 1;

                    //获取结束数据下标大于总记录数时
                    if (intGetLastRs >= intRsCounww)
                    {
                        intGetLastRs = intRsCounww - 1;
                    }

                    //循环获取数据
                    MyTable = dtblTableww.Clone();
                    for (int I = intGetFirstRs; I <= intGetLastRs; I++)
                    {
                        DataRow MyRow = dtblTableww.Rows[I];
                        MyTable.ImportRow(MyRow);
                    }
                }
            }
            return MyTable;
        }
        #endregion


        #region 将字符串转换成整数
        /// <summary>
        /// 将字符串转换成整数
        /// </summary>
        /// <param name="strValue">将字符传转换成整数</param>
        /// <returns>int</returns>
        private int GetNumeric(string strValue)
        {

            int IReturn;

            if (strValue == null)
            {
                IReturn = 0;
                return IReturn;
            }
            try
            {
                IReturn = Convert.ToInt32(strValue);
            }
            catch
            {
                IReturn = 0;
            }
            return IReturn;
        }
        #endregion

        #region 获取Request值
        /// <summary>
        /// 获取Request值
        /// </summary>
        /// <param name="strRequestName">Request名称</param>
        /// <returns>null则为空</returns>
        private string GetRequest(string strRequestName)
        {

            if (HttpContext.Current.Request["" + strRequestName + ""] != null)
            {
                return HttpContext.Current.Request["" + strRequestName + ""];
            }
            else
            {
                return "";
            }
        }
        #endregion


        #region --------------------------------调用实例--------------------------
        ///// <summary>
        ///// 调用实例
        ///// </summary>
        //protected void BindData()
        //{
        //    Student MyStudent = new Student();

        //    DataTable MyDataTable = MyStudent.GetList("LIST", null);

        //    Pageing MyPageing = new Pageing();
        //    MyPageing.dtblTableww = MyDataTable;//数据源
        //    MyPageing.intPageSizeww = 4;//每页显示多少条
        //    MyPageing.strTurnUrlww = "MyRepeater.aspx";//跳转页面
        //    MyPageing.strOptionww = "DoWhat=List";//跳转页面带的所有参数

        //    //获取当前页数据
        //    this.DataList1.DataSource = MyPageing.BeginPage(true, true, true, true, true, false);
        //    //获取当前页分页显示
        //    this.Label1.Text = MyPageing.GetPageShow;

        //    this.DataList1.DataBind();
        //}
        #endregion

    }
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  • 原文地址:https://www.cnblogs.com/smallfa/p/1129534.html
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