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  • jQuery easyUI 使用 datagrid 表格

    获取后台数据依旧是使用一般处理程序(ashx) ,分页上添加一个函数(pagerFilter(data))

    前端代码:

    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="dataGrid.aspx.cs" Inherits="Web.Management.dataGrid" %>
    
    <!DOCTYPE html>
    
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <title></title>
         <link href="easyui/themes/default/easyui.css" rel="stylesheet" />
        <link href="easyui/themes/icon.css" rel="stylesheet" />
        <link href="css/style.css" rel="stylesheet" />
        <script src="easyui/jquery.min.js"></script>
        <script src="easyui/jquery.easyui.min.js"></script>
        <script type="text/javascript" src="http://www.w3cschool.cc/try/jeasyui/datagrid-detailview.js"></script>
        <script src="easyui/locale/easyui-lang-zh_CN.js"></script>
        <script src="js/echarts.js"></script>
        <script src="js/shine.js"></script>
        <script type="text/javascript">  
            $(function () {  
                $('#dg').datagrid({
                    url:'ashx/GetDataFormSql.ashx',  
                     800,  
                    title: '设备管理',  
                    method:'get',  
                    columns: [[  
                        { field: 'adminName', title: '登录名',  300 },
                        { field: 'trueName', title: '用户名',  300 },
                        { field: 'mobilePhone', title: '联系电话',  200 }
                    ]],  
                    pagination: true,  
                    pageSize:1,  
                    pageList:[1,2,3]  
                })  
            })
            function pagerFilter(data) {
                if (typeof data.length == 'number' && typeof data.splice == 'function') {   // is array  
                    data = {
                        total: data.length,
                        rows: data
                    }
                }
                var dg = $(this);
                var opts = dg.datagrid('options');
                var pager = dg.datagrid('getPager');
                pager.pagination({
                    onSelectPage: function (pageNum, pageSize) {
                        opts.pageNumber = pageNum;
                        opts.pageSize = pageSize;
                        pager.pagination('refresh', {
                            pageNumber: pageNum,
                            pageSize: pageSize
                        });
                        dg.datagrid('loadData', data);
                    }
                });
                if (!data.originalRows) {
                    data.originalRows = (data.rows);
                }
                var start = (opts.pageNumber - 1) * parseInt(opts.pageSize);
                var end = start + parseInt(opts.pageSize);
                data.rows = (data.originalRows.slice(start, end));
                return data;
            }
    
            $(function () {
                $('#dg').datagrid({ loadFilter: pagerFilter }).datagrid('loadData', getData());
            });
        </script> 
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
         <table id="dg"></table>  
        </div>
        </form>
    </body>
    </html>

    后台代码:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Data; 
    using System.Text;
    
    namespace Web.Management.ashx
    {
        /// <summary>
        /// GetDataFormSql 的摘要说明
        /// </summary>
        public class GetDataFormSql : IHttpHandler
        {
    
            public void ProcessRequest(HttpContext context)
            {
    
                string command = context.Request.QueryString["test"];//前台传的标示值    
                if (command == "add")
                {//调用添加方法    
                    //Add(context);//我暂时只是绑定,所以把这些给注释了  
                }
                else if (command == "modify")
                {//调用修改方法    
                    //Modify(context);//我暂时只是绑定,所以把这些给注释了  
                }
                else
                {//调用查询方法    
                    Query(context);
                }  
               
            }
            public void Query(HttpContext context)
            {
                //调用B层的方法从而获取数据库的Dataset    
                DataSet ds = BRL.BLL.A_admin.GetAllList();
                //将Dataset转化为Datable    
                DataTable dt = ds.Tables[0];
                int count = dt.Rows.Count;
                string strJson = Dataset2Json(ds, count);//DataSet数据转化为Json数据    
                context.Response.Write(strJson);//返回给前台页面    
                context.Response.End();
    
            }
    
            public static string Dataset2Json(DataSet ds, int total = -1)
            {
                StringBuilder json = new StringBuilder();
    
                foreach (DataTable dt in ds.Tables)
                {
                    //{"total":5,"rows":[  
                    json.Append("{"total":");
                    if (total == -1)
                    {
                        json.Append(dt.Rows.Count);
                    }
                    else
                    {
                        json.Append(total);
                    }
                    json.Append(","rows":[");
                    json.Append(DataTable2Json(dt));
                    json.Append("]}");
                }
                return json.ToString();
            }
    
            public static string DataTable2Json(DataTable dt)
            {
                StringBuilder jsonBuilder = new StringBuilder();
    
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    jsonBuilder.Append("{");
                    for (int j = 0; j < dt.Columns.Count; j++)
                    {
                        jsonBuilder.Append(""");
                        jsonBuilder.Append(dt.Columns[j].ColumnName);
                        jsonBuilder.Append("":"");
                        jsonBuilder.Append(dt.Rows[i][j].ToString());
                        jsonBuilder.Append("",");
                    }
                    if (dt.Columns.Count > 0)
                    {
                        jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                    }
                    jsonBuilder.Append("},");
                }
                if (dt.Rows.Count > 0)
                {
                    jsonBuilder.Remove(jsonBuilder.Length - 1, 1);
                }
    
                return jsonBuilder.ToString();
            }  
            public bool IsReusable
            {
                get
                {
                    return false;
                }
            }
    
           
        }
        
    }
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  • 原文地址:https://www.cnblogs.com/zhang1f/p/11106051.html
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