DataGrid 超强分页（原创）

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DataGrid 超强分页（原创）

aspx文件

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<%@ Page language="c#" Codebehind="userlist.aspx.cs" AutoEventWireup="false" Inherits="admin.userlist" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
    <HEAD>
        <title>userlist</title>
        <meta content=" Microsoft Visual Studio .NET 7.1" name="GENERATOR">
        <meta content="C#" name="CODE_LANGUAGE">
        <meta content="JavaScript" name="vs_defaultClientScript">
        <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
        <LINK href="../images/css_admin.css" type="text/css" rel="stylesheet">
    </HEAD>
    <body bgColor="#ffeef7">
        <%=script%>
        <form id="Form1" method="post" runat="server">
            <div align="center">
                <table cellSpacing="0" cellPadding="0" width="100%" border="0">
                    <tr>
                        <td width="100%">
                            <div align="center">
                                <table height="20" cellSpacing="0" cellPadding="0" width="100%" bgColor="#d6e7ef" border="0">
                                    <tr>
                                        <td width="100%">
                                            <hr width="90%" SIZE="1">
                                        </td>
                                    </tr>
                                </table>
                            </div>
                        </td>
                    </tr>
                </table>
            </div>
            <DIV align="center">注册会员管理：</DIV>
            <div align="center">
                <table height="40" cellSpacing="0" cellPadding="0" width="96%" border="0">
                    <tr>
                        <td align="center" width="100%">会员搜索：
                            <asp:dropdownlist id="DdlSearchType" runat="server" Height="16px" Width="110px">
                                <asp:LIstItem Value="1">按会员名称搜索</asp:LIstItem>
                                <asp:ListItem Value="2">按会员ID搜索</asp:ListItem>
                            </asp:dropdownlist><asp:textbox id="TxtSearchValue" runat="server"></asp:textbox>  
                            <asp:button id="BtnSub" runat="server" Text="提交"></asp:button></td>
                    </tr>
                </table>
            </div>
            <div align="center"><asp:datagrid id="DgUserList" runat="server" Width="96%" AllowPaging="True" PageSize="30" PagerStyle-HorizontalAlign="Right"
                    PagerStyle-Height="30" HeaderStyle-Height="25" ItemStyle-Height="25" AutoGenerateColumns="False" BorderColor="Firebrick"
                    BorderWidth="1px" CellPadding="0">
                    <AlternatingItemStyle BackColor="Azure"></AlternatingItemStyle>
                    <ItemStyle Height="25px"></ItemStyle>
                    <HeaderStyle HorizontalAlign="Center" Height="25px" BackColor="LightPink"></HeaderStyle>
                    <Columns>
                        <asp:TemplateColumn HeaderText="是否交费">
                            <ItemStyle HorizontalAlign="Center"></ItemStyle>
                            <ItemTemplate>
                                <%# DataBinder.Eval(Container.DataItem, "SFJFSORTNAME")%>
                            </ItemTemplate>
                        </asp:TemplateColumn>
                        <asp:TemplateColumn HeaderText="注册会员ID">
                            <ItemTemplate>
                                <%# DataBinder.Eval(Container.DataItem, "YJSID")%>
                            </ItemTemplate>
                        </asp:TemplateColumn>
                        <asp:TemplateColumn HeaderText="姓名">
                            <ItemTemplate>
                                <%# DataBinder.Eval(Container.DataItem, "YJSNAME")%>
                            </ItemTemplate>
                        </asp:TemplateColumn>
                        <asp:TemplateColumn HeaderText="类别">
                            <ItemStyle HorizontalAlign="Center"></ItemStyle>
                            <ItemTemplate>
                                <%# DataBinder.Eval(Container.DataItem, "YJSSORTNAME")%>
                            </ItemTemplate>
                        </asp:TemplateColumn>
                        <asp:TemplateColumn HeaderText="加入时间">
                            <ItemStyle HorizontalAlign="Center"></ItemStyle>
                            <ItemTemplate>
                                <%# DataBinder.Eval(Container.DataItem, "REGTIME")%>
                            </ItemTemplate>
                        </asp:TemplateColumn>
                        <asp:TemplateColumn HeaderText="操作">
                            <ItemStyle HorizontalAlign="Center"></ItemStyle>
                            <ItemTemplate>
                                <a href='UserMod.aspx?yjsid=<%# DataBinder.Eval(Container.DataItem, "YJSID")%>'>更改</a>
                            </ItemTemplate>
                        </asp:TemplateColumn>
                    </Columns>
                    <PagerStyle Height="30px" HorizontalAlign="Right" Mode="NumericPages"></PagerStyle>
                </asp:datagrid></div>
            <div align="center">
                <TABLE id="Table1" cellSpacing="0" cellPadding="0" width="96%" align="center" bgColor="#ffffff"
                    border="0">
                    <TR>
                        <TD align="center" height="30">记录数：
                            <asp:label id="LblRecordCount" runat="server">记录数</asp:label>；页次：
                            <asp:label id="LblCurrentIndex" runat="server">当前页</asp:label>/
                            <asp:label id="LblPageCount" runat="server">总页数</asp:label>；【<asp:linkbutton id="BtnFirst" CommandArgument="first" runat="server">首页</asp:linkbutton>】
                            【<asp:linkbutton id="BtnPrev" CommandArgument="prev" runat="server">上一页</asp:linkbutton><%=prev%>】
                            【<asp:linkbutton id="BtnNext" CommandArgument="next" runat="server">下一页</asp:linkbutton><%=next%>】
                            【<asp:linkbutton id="BtnLast" CommandArgument="last" runat="server">尾页</asp:linkbutton>】
                            跳转：<asp:TextBox id="TxtJump" runat="server" Width="30px"></asp:TextBox> 
                            <asp:Button id="BtnJumpSub" runat="server" Width="30px" Text="GO" Height="22px"></asp:Button>
                        </TD>
                    </TR>
                </TABLE>
            </div>
        </form>
        <br>
        <br>
    </body>
</HTML>

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cs文件
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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using DataAccess;
using Entity;

namespace admin
{
    /**//// <summary>
    /// userlist 的摘要说明。
    /// </summary>
    public class userlist : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.DropDownList DdlSearchType;
        protected System.Web.UI.WebControls.Button BtnSub;
        protected System.Web.UI.WebControls.DataGrid DgUserList;
        protected System.Web.UI.WebControls.Label LblRecordCount;
        protected System.Web.UI.WebControls.Label LblCurrentIndex;
        protected System.Web.UI.WebControls.Label LblPageCount;
        protected System.Web.UI.WebControls.LinkButton BtnFirst;
        protected System.Web.UI.WebControls.LinkButton BtnPrev;
        protected System.Web.UI.WebControls.LinkButton BtnNext;
        protected System.Web.UI.WebControls.LinkButton BtnLast;
        protected System.Web.UI.WebControls.TextBox TxtSearchValue;
        protected int RecordCount;//记录总数
        protected int PageCount;//页面总数
        protected string prev;
        protected string next;
        protected System.Web.UI.WebControls.TextBox TxtJump;
        protected System.Web.UI.WebControls.Button BtnJumpSub;
        protected string script;

        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            //-管理员判断----------------------------------
            HttpCookie cokAdminName=new HttpCookie("CokAdminName");
            HttpCookie cokAdminPs=new HttpCookie("CokAdminPs");
            cokAdminName=Request.Cookies["CokAdminName"];
            cokAdminPs=Request.Cookies["CokAdminPs"];
            AdminLogin adLog=new AdminLogin(cokAdminName.Value ,cokAdminPs.Value );
            if(!adLog.login())
            {
                Response.Redirect("adminloginerror.aspx",true);
            }
            //----------------------------------------------

            if(!Page.IsPostBack)
            {
                this.DispUserList();
                this.ShowStats();
            }
        }


        //-DATAGRID链接事件------------------------------------------------------------------------------
        private void DgUserList_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
        {
            this.DgUserList.CurrentPageIndex=e.NewPageIndex;
            this.DispUserList();
            this.ShowStats();

        }
        //------------------------------------------------------------------------------------------------

        //-PageBtn_Click()事件--------------------------------------------------------------------------
        private void PageBtn_Click(object sender, System.EventArgs e)
        {
            string btn=((LinkButton)sender).CommandArgument.ToString();
            switch(btn)
            {
                case "first":
                    this.DgUserList.CurrentPageIndex=0;
                    break;
                case "last":
                    if(this.DgUserList.PageCount==0)
                    {
                        this.DgUserList.CurrentPageIndex=this.DgUserList.PageCount;
                    }
                    else
                    {
                        this.DgUserList.CurrentPageIndex=this.DgUserList.PageCount-1;
                    }
                    break;
                case "prev":
                    this.DgUserList.CurrentPageIndex-=1;
                    break;
                case "next":
                    this.DgUserList.CurrentPageIndex+=1;
                    break;
            }
            this.DispUserList();
            this.ShowStats();
        }
        //------------------------------------------------------------------------------------------------

        //-跳转页面事件------------------------------------------------------------------------------
        private void BtnJumpSub_Click(object sender, System.EventArgs e)
        {
            try
            {
                if(System.Convert.ToInt32(this.TxtJump.Text.ToString())<0||System.Convert.ToInt32(this.TxtJump.Text.ToString())>this.DgUserList.PageCount)
                {
                    script+="<script language=javascript>alert('请输入正确的页数！')</script>";
                    this.DispUserList();
                    this.ShowStats();
                    this.TxtJump.Text="";
                }
                else
                {
                    this.DgUserList.CurrentPageIndex=System.Convert.ToInt32(this.TxtJump.Text.ToString())-1;
                    this.DispUserList();
                    this.ShowStats();
                }
            }
            catch
            {
                script+="<script language=javascript>alert('请输入正确的页数！')</script>";
                this.DispUserList();
                this.ShowStats();
                this.TxtJump.Text="";
            }

        }
        //-------------------------------------------------------------------------------------------


        //-搜索事件-----------------------------------------------------------------------------------------
        private void BtnSub_Click(object sender, System.EventArgs e)
        {
            this.DgUserList.CurrentPageIndex=0;
            this.DispUserList();
            this.ShowStats();
        }
        //--------------------------------------------------------------------------------------------------

        //-绑定DataGrid，DispUserList()---------------------------------------------
        public void DispUserList()
        {
            DataSet ds=OracleSelect.GetUserList(System.Convert.ToInt32(this.DdlSearchType.SelectedItem.Value.ToString()),this.TxtSearchValue.Text.ToString());
            if(ds.Tables.Count>0)
            {
                if(ds.Tables[0].Rows.Count>0)
                {
                    this.DgUserList.DataSource=ds;
                    this.DgUserList.DataBind();
                    this.RecordCount=ds.Tables[0].Rows.Count;//计算记录总数
                }
                else
                {
                    this.script+="<script language=javascript>alert('sorry，没有找到相关记录！')</script>";
                }
            }

        }
        //----------------------------------------------------------

        //-统计记录 ShowStats()-------------------------------------------------
        public void ShowStats()
        {
            this.LblRecordCount.Text=this.RecordCount.ToString();
            this.LblCurrentIndex.Text=(this.DgUserList.CurrentPageIndex+1).ToString();
            this.LblPageCount.Text=this.DgUserList.PageCount.ToString();
            this.PageCount=this.DgUserList.PageCount;//计算页面总数
            this.ShowPrevNext((this.DgUserList.CurrentPageIndex+1),this.DgUserList.PageCount);
        }

        //-是否显示上一页，下一页链接ShowPrevNext()----------------------------------------------------------------------
        public void ShowPrevNext(int currentPage,int pageCount)
        {
            if(pageCount==1)
            {
                this.prev="<font color=888888>上一页</font>";
                this.next="<font color=888888>下一页</font>";
                this.BtnPrev.Visible=false;
                this.BtnNext.Visible=false;
            }
            else
            {
                if(currentPage==1)
                {
                    this.prev="<font color=888888>上一页</font>";
                    this.BtnPrev.Visible=false;
                    this.next="";
                    this.BtnNext.Visible=true;
                }
                else
                {
                    if(currentPage==this.PageCount)
                    {
                        this.next="<font color=888888>下一页</font>";
                        this.BtnNext.Visible=false;
                        this.prev="";
                        this.BtnPrev.Visible=true;
                    }
                    else
                    {
                        this.prev="";
                        this.next="";
                        this.BtnPrev.Visible=true;
                        this.BtnNext.Visible=true;
                    }
                }
            }
        }
        //-------------------------------------------------------------------------------------------------

        Web 窗体设计器生成的代码

    }
}

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原文地址：https://www.cnblogs.com/ami/p/454554.html