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EasyUI datagrid 动态绑定列

2024-07-05 01:28:45   230人阅读

查了很多资料，有点乱

首先声明一下这里必须要用easyui1.3.1

不多说直接上代码：

首先打开jquery.easyui.min.js，查找_53b()

找到下面的代码

function _53b(){
var _53c=opts.loader.call(_538,_53a,function(data){
setTimeout(function(){
$(_538).datagrid("loaded");
},0);
_4b1(_538,data);
setTimeout(function(){
_52b(_538);
},0);
}

替换成下面这段代码

function _53b(){
var _53c=opts.loader.call(_538,_53a,function(data){

//add dynamic columns
if(data!=null && data.cols!=null){
    var opts=$.data(_538, "datagrid").options;           
    var cols = $.data(_538, "datagrid").options.columns[0];      
    var colCount=cols.length;
    if(colCount==0){          
       for (var i = 0; i < data.cols.length; i++) {      
           var col = {      
               field: data.cols[i].field,      
               title: data.cols[i].title,      
               width: data.cols[i].width   
           };      
           cols.push(col);      
       }      
       //UI      
       if (colCount==0 && opts.columns) {      
           _461(_538);
       }      
    }    
}

setTimeout(function(){
$(_538).datagrid("loaded");
},0);
_4b1(_538,data);
setTimeout(function(){
_52b(_538);
},0);
}

然后开始写html

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="DynamicDataTable.aspx.cs" Inherits="MyWeb.DynamicDataTable" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
<html xmlns="
<head runat="server">
    <title></title>
    <link href="js/easyui/themes/default/easyui.css" rel="stylesheet" type="text/css" />
    <link href="js/easyui/themes/icon.css" rel="stylesheet" type="text/css" />
    <script src="js/jquery-1.8.0.min.js" type="text/javascript"></script>
    <script src="js/easyui/jquery.easyui.min.js" type="text/javascript"></script>

    <script src="js/jquery.json/jquery.json-2.2.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function () {
            $(‘#tbEmployee‘).datagrid({
                title: ‘Customer Infos‘,
                width: 700,
                height: 350,
                nowrap: true,
                pagination: true,
                rownumbers: true,
                url: ‘Services/EmployeeService.asmx/GetCustomerList‘,
                columns: [[]]
            });
        });
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table id="tbEmployee">
        </table>
    </div>
    </form>
</body>
</html>

后代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Web.Script.Services;

namespace MyWeb.Services {
    /// <summary>
    /// EmployeeService 
    /// </summary>
    [WebService(Namespace = ")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    //  ASP.NET AJAX  Web ??
    [System.Web.Script.Services.ScriptService]
    public class EmployeeService : System.Web.Services.WebService {

        [WebMethod]
        public void GetCustomerList() {
            //
            //
            //
            NorthwindEntities db=new NorthwindEntities();
            //
            int count = db.Customers.Count();
            //
            int page = Convert.ToInt32(Context.Request.Form["page"]);
            int rows = Convert.ToInt32(Context.Request.Form["rows"]);
            //
            List<Customers> cusList = db.Customers.OrderBy(c => c.CustomerID).Skip((page - 1) * rows).Take(rows).ToList();
            //JSON
            JObject result = new JObject(
                new JProperty("total", count),
                new JProperty("rows", new JArray(
                    from c in cusList
                    select new JObject(
                        new JProperty("CustomerID", c.CustomerID),
                        new JProperty("Name", c.ContactName),
                        new JProperty("City",c.City),
                        new JProperty("Address",c.Address)
                    )
                ))
            );

            //??
            List<EColumn> colList = new List<EColumn>() {
                new EColumn{Field="CustomerID",Title="",Width=80},
                new EColumn{Field="Name",Title="",Width=80},
                new EColumn{Field="City",Title="",Width=80},
                new EColumn{Field="Address",Title="",Width=120},
            };
            JArray cols = new JArray(
                from c in colList
                select new JObject(
                    new JProperty("field", c.Field),
                    new JProperty("title", c.Title),
                    new JProperty("width", c.Width),
                    new JProperty("sortable", c.Sortable),
                    new JProperty("checkbox", c.Checkbox)
                )
            );
            result.Add(new JProperty("cols", cols));

            Context.Response.ContentType = "application/json;utf-8";
            Context.Response.Write(result.ToString());
        }
    }
}

补充一个类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace MyWeb {
    [Serializable]
    public class EColumn {
        public string Field { get; set; }
        public double Width { get; set; }
        public string Title { get; set; }
        public bool Sortable { get; set; }
        public bool Checkbox { get; set; }
    }
}

OK搞定


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