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  • MVC-分页

    类:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Data;
    
    namespace study_MvcApplication.Models
    {
        public class Common
        {
            //判断非数字
            public static bool IsNumber(string str)
            {
                bool result = true;
                string msg = "0123456789";
                for (int i = 0; i < str.Length; i++)
                {
                    if (msg.IndexOf(str[i]) == -1)
                    {
                        result = false;
                        break;
                    }
                }
                return result;
            }
            //专门为分页处理定义的方法,处理page的值
            public static int GetPage(string pagestring, int pagecount)
            {
                int page;
                if (pagestring == null)
                {
                    page = 1;
                }
                else if (!Common.IsNumber(pagestring))
                {
                    page = 1;
                }
                else if (Convert.ToInt32(pagestring) < 1)
                {
                    page = 1;
                }
                else if (Convert.ToInt32(pagestring) > pagecount)
                {
                    page = pagecount;
                }
                else
                {
                    page = Convert.ToInt32(pagestring);
                }
                return page;
            }
            //获取startpageno
            public static int GetStartPageno(int minpageno, int maxpageno, int pagecount, int page, out int endpageno)
            {
                int startpageno;
                if (minpageno > pagecount)
                {
                    endpageno = pagecount;
                }
                else
                {
                    endpageno = minpageno + (page - 1);
                        if(endpageno > pagecount)
                        {
                            endpageno = pagecount;
                        }
                }
                if(endpageno < maxpageno)
                {
                        startpageno = 1;
                }
                else
                {
                        startpageno = endpageno - maxpageno +1;
                }
                    return startpageno;
             }
            
            //完成分页效果显示功能
            public static void ShowPage(int recordcount, int pagesize, int page, int pagecount, int startpageno, int endpageno, string url)
            {
                    HttpContext.Current.Response.Write("<div style='height:80px;text-align:center;'class='page'>");
                    HttpContext.Current.Response.Write("" + recordcount.ToString() + "" + pagesize.ToString() + "条/页 第" + page.ToString() +"页/共" + pagecount.ToString() + "");
                    HttpContext.Current.Response.Write("&nbsp;&nbsp;&nbsp;&nbsp;<br />");
                    if(page == 1)
                    {
                        HttpContext.Current.Response.Write("<span class='disabled'>首页</span>&nbsp;&nbsp;");
                        HttpContext.Current.Response.Write("<span class='disabled'>上页</span>&nbsp;&nbsp;");
                    }
                    else
                    {
                        HttpContext.Current.Response.Write("<a href='" + url + "page=1'>首页</a>&nbsp;&nbsp;");
                        HttpContext.Current.Response.Write("<a href='" + url + "page=1'>下页</a>&nbsp;&nbsp;");
                    }
                    for(int i = startpageno ;i <= endpageno;i++)
                    {
                        if(page == i)
                        {
                            HttpContext.Current.Response.Write("<span class='current'>" + i.ToString() + "</span>");
                        }
                        else
                        {
                            HttpContext.Current.Response.Write("<a href='" + url + "page=" + i.ToString() +"'>"+ i.ToString() +"</a>");
                        }
                    }
                    if(page == pagecount)
                    {
                        HttpContext.Current.Response.Write("<span class='disabled'>下页</span>&nbsp;&nbsp;");
                         HttpContext.Current.Response.Write("<span class='disabled'>尾页</span>&nbsp;&nbsp;");
                    }
                    else
                    {
                        HttpContext.Current.Response.Write("<a href='" + url + "page=" + (page+1).ToString() + "'>下页</a>&nbsp;&nbsp;");
                        HttpContext.Current.Response.Write("<a href='" + url + "page=" + pagecount.ToString() + "'>尾页</a>&nbsp;&nbsp;");
                    }
                    HttpContext.Current.Response.Write("</div>");
           }
        }
    }
    View Code

    实例:

    <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>
    
    <!DOCTYPE html>
    
    <html>
    <head runat="server">
        <meta name="viewport" content="width=device-width" />
        <title>ListPage</title>
        <style type="text/css">
             *
            {
                font-size:14px;
                font-family:STXinwei,STSong;
            }
                .page
                {
                    padding-right:7px;
                    padding-left:7px;
                    padding-bottom:7px;
                    margin:3px;
                    padding-top:7px;
                    text-align:center;
                }
                    .page a
                    {
                        border-right:#ccc 1px solid;
                        padding-right:5px;
                        border-top:#ccc 1px solid;
                        padding-left:5px;
                        padding-bottom:2px;
                        margin:2px;
                        border-left:#ccc 1px solid;
                        color:#000;
                        padding-top:2px;
                        border-bottom:#ccc 1px solid;
                        text-decoration:none;
                    }
                        .page a:hover
                        {
                            border-right:#f0f0f0 1px solid;
                            border-top:#f0f0f0 1px solid;
                            border-left:#f0f0f0 1px solid;
                            color:#ff0000;
                            border-bottom:#f0f0f0 1px solid;
                        }
                        .page a:active
                        {
                            border-right:#f0f0f0 1px solid;
                            border-top:#f0f0f0 1px solid;
                            border-left:#f0f0f0 1px solid;
                            color:#ff0000;
                            border-bottom:#f0f0f0 1px solid;
                        }
                    .page span.current
                    {
                        border-right:#d9d300 1px solid;
                        padding-right:5px;
                        border-top:#d9d300 1px solid;
                        padding-left:5px;
                        font-weight:bold;
                        padding-bottom:2px;
                        margin:2px;
                        border-left:#d9d300 1px solid;
                        color:#fff;
                        padding-top:2px;
                        border-bottom:#d9d300 1px solid;
                        background-color:#d9d300;
                    }
                    .page span.disabled
                    {
                        border-right:#eee 1px solid;
                        padding-right:5px;
                        border-top:#eee 1px solid;
                        padding-left:5px;
                        padding-bottom:2px;
                        margin:2px;
                        border-left:#eee 1px solid;
                        color:#ddd;
                        padding-top:2px;
                        border-bottom:#eee 1px solid;
                    }
            </style>
    </head>
    <body>
        <div>
            <table style="600px;border:1px solid #ff6a00;padding:0px;margin:0px">
                <tr>
                    <td style="150px;height:30px;border-bottom:1px dotted #ff6a00">编号</td>
                    <td style="300px;height:30px;border-bottom:1px dotted #ff6a00">姓名</td>
                    <td style="150px;height:30px;border-bottom:1px dotted #ff6a00">操作</td>
                </tr>
                <%
                    System.Data.DataTable table = ViewBag.StudentList;
                    int recordcount = table.Rows.Count;
                    int pagesize = 5;
                    int pagecount = Convert.ToInt32(Math.Ceiling(Convert.ToDouble(recordcount) / Convert.ToDouble(pagesize)));
                    string pagestring = Request.QueryString["page"];
                    int page = study_MvcApplication.Models.Common.GetPage(pagestring, pagecount);
                    int startindex = (page - 1) * pagesize;
                    int endindex = pagesize * page - 1;
                    if (endindex >= recordcount - 1) endindex = recordcount - 1;
                    int minpageno = 5;
                    int maxpageno = 10;
                    int endpageno;
                    int startpageno = study_MvcApplication.Models.Common.GetStartPageno(minpageno, maxpageno, pagecount, page, out endpageno);
                    for(int i = startindex;i <= endindex;i++)
                    {
                     %>
                <tr>
                    <td style="height:30px;border-bottom:1px dotted #ff6a00"><%=table.Rows[i]["id"].ToString() %></td>
                    <td style="height:30px;border-bottom:1px dotted #ff6a00"><%=table.Rows[i]["name"].ToString() %></td>
                    <td style="height:30px;border-bottom:1px dotted #ff6a00"><a href="/Student/Detail/<%=table.Rows[i]["id"].ToString() %>">查看详细</a></td>
                </tr>
                <%
                }
                     %>
                <tr>
                    <td colspan="3" style="line-height:30px;"><%study_MvcApplication.Models.Common.ShowPage(recordcount, pagesize, page, pagecount, startpageno, endpageno, "?"); %></td>
                </tr>
            </table>
            
        </div>
    </body>
    </html>
    View Code
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  • 原文地址:https://www.cnblogs.com/johanxu/p/5529961.html
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