Asp.Net 中Grid详解两种方法使用LigerUI加载数据库数据填充数据分页
1、关于LigerUI:
LigerUI 是基于jQuery 的UI框架,其核心设计目标是快速开发、使用简单、功能强大、轻量级、易扩展。简单而又强大,致力于快速打造Web前端界面解决方案,可以应用于.net,jsp,php等等web服务器环境。
LigerUI演示地址:http://www.ligerui.com
LigerUI API地址:http://api.ligerui.com/
官网百度云盘最新下载地址:https://pan.baidu.com/s/1o83vRZk
2、在MVC中使用LigerUI 填充Grid
2.1、新建一个空的MVC项目 把下载框架中Source文件夹下面的Lib目录复制到项目根目录,记住是Lib整个目录,为了防止文件名重复将他重命名一下如下图所示
2.2、新建一个控制Home,在Home控制器中添加对应的视图
2.3、在视图里添加Grid所需要的JS跟CSS,这里主要的就是前面4个路径不能写错,这里特别提示一下 不要引用MVC创建项目里Script文件夹下面的jQuery 我的用了就出错了 问题还没有找到 我直接删除了里面的js 也没有引用布局。
2.4不分页或者本地分页的视图代码:里面的代码都通俗易懂通过URL到控制器里面
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <link rel="stylesheet" type="text/css" href="~/ScriptStyle/ligerUI/skins/Aqua/css/ligerui-all.css" /> <script src="~/ScriptStyle/jquery/jquery-1.4.4.min.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/core/base.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/plugins/ligerGrid.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/ligerui.min.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/plugins/ligerResizable.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/plugins/ligerCheckBox.js" type="text/javascript"></script> <style type="text/css"> .divmain { width: 1200px; margin: 0 auto; text-align: center; } </style> <script type="text/javascript"> $(document).ready(function () { //本地分页 $("#MainGridTest").ligerGrid({ width: 1000, columns: [ { display: "学号", name: "Number" }, { display: "流水号", name: "WaterID" }, { display: "地点", name: "Place" }, { display: "金钱", name: "Money" }, { display: "操作员", name: "People" }, { display: "时间", name: "Times",type:'date',format:'yyyy年MM月dd日 hh:mm:ss'}, { display: "备注", name: "Depict" } ], url: "/Home/GetDataNoPage", pageSize: 30, usePage: true, dataAction: "local",//本地分页 pageSizeOptions: [10, 20, 30, 50, 100]//可指定每页页面大小 }); }); </script> </head> <body> <br /><br /><br /> <h2 style="text-align:center;">MVC LigerUI显示测试不分页或者是本地分页</h2><br /> <div class="divmain" id="MainGridTest"></div> </body> </html>
2.5、控制器里面的不分页的代码:ligerGrid显示数据采用 json对象,注意默认情况下grid要求的json数据格式如下:{Rows:[{},{}],Total:2}; 我在这里搞了好多次,一般的Json取回来都是[{},{},{}]这样的格式 这个特别注意一下
public ActionResult GetDataNoPage() { string _sql = "select top 200 Number, WaterID, Place, Money, State, People, Times, Depict from Record"; SqlConnection conn = new SqlConnection(); conn.ConnectionString = "Data Source=.;Initial Catalog=OneCardSystem;Integrated Security=True"; if (conn.State == ConnectionState.Closed) { conn.Open(); } SqlCommand cmd = new SqlCommand(); cmd.CommandText = _sql; cmd.Connection = conn; SqlDataAdapter sda = new SqlDataAdapter(); sda.SelectCommand = cmd; DataSet ds = new DataSet(); sda.Fill(ds); var datas =ds.Tables[0].Rows; List<ModleSt> list = new List<ModleSt>(); var total = datas.Count; foreach (DataRow item in datas) { var act = new ModleSt() { Number= item["Number"].ToString(), WaterID= item["WaterID"].ToString(), Place= item["Place"].ToString(), Money=Convert.ToDouble( item["Money"]), State= item["State"].ToString(), People= item["People"].ToString(), Times=Convert.ToDateTime(item["Times"].ToString()), Depict= item["Depict"].ToString(), }; list.Add(act); } var GetDatt = new { Rows=list, Total=total }; return Json(GetDatt); }
我这里没有封装失sqlDB类写的有点多了,注意后面一定要返回Json格式 要加上Rows跟total total就是数据的数量也就是长度。可以看到效果是这样的。这个是本地分页,数据量小感觉不到 数据量大的时候回很吃内存的。ModleSt 是这个数据的实体类
2.6、服务器分页要把Grid里面的dataAction: "local",注释了这个属性就这样 为true的时候本地会自动分页
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <link rel="stylesheet" type="text/css" href="~/ScriptStyle/ligerUI/skins/Aqua/css/ligerui-all.css" /> <script src="~/ScriptStyle/jquery/jquery-1.4.4.min.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/core/base.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/plugins/ligerGrid.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/ligerui.min.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/plugins/ligerResizable.js" type="text/javascript"></script> <script src="~/ScriptStyle/ligerUI/js/plugins/ligerCheckBox.js" type="text/javascript"></script> <style type="text/css"> .divmain { width: 1200px; margin: 0 auto; text-align: center; } </style> <script type="text/javascript"> $(document).ready(function () { //服务器分页 $("#MainGridTestTOW").ligerGrid({ width: 1000, columns: [ { display: "学号", name: "Number" }, { display: "流水号", name: "WaterID" }, { display: "地点", name: "Place" }, { display: "金钱", name: "Money" }, { display: "操作员", name: "People" }, { display: "时间", name: "Times", type: 'date', format: 'yyyy年MM月dd日 hh:mm:ss' }, { display: "备注", name: "Depict" } ], url: "/Home/GetDataUsePage", pageSize: 30, usePage: true, //dataAction: "local", rownumber: true, pageSizeOptions: [10, 20, 30, 50, 100]//可指定每页页面大小 }); }); </script> </head> <body> <br /><br /><br /> <h2 style="text-align:center;">MVC LigerUI显示测试服务器分页</h2><br /> <div class="divmain" id="MainGridTestTOW"></div> </body> </html>
后台控制器
public ActionResult GetDataUsePage() { //排序的字段名 string SortName = Request.Params["sortname"]; //排序的方向 string SortOrder = Request.Params["sortorder"]; //当前页 int PageNow = Convert.ToInt32(Request.Params["page"]); //每页显示的记录数 int pagesize = Convert.ToInt32(Request.Params["pagesize"]); string _sql = "select Number, WaterID, Place, Money, State, People, Times, Depict from Record"; SqlConnection conn = new SqlConnection(); conn.ConnectionString = "Data Source=.;Initial Catalog=OneCardSystem;Integrated Security=True"; if (conn.State == ConnectionState.Closed) { conn.Open(); } SqlCommand cmd = new SqlCommand(); cmd.CommandText = _sql; cmd.Connection = conn; SqlDataAdapter sda = new SqlDataAdapter(); sda.SelectCommand = cmd; DataSet ds = new DataSet(); sda.Fill(ds); var datas = ds.Tables[0].Rows; List<ModleSt> list = new List<ModleSt>(); var total = datas.Count; foreach (DataRow item in datas) { var act = new ModleSt() { Number = item["Number"].ToString(), WaterID = item["WaterID"].ToString(), Place = item["Place"].ToString(), Money = Convert.ToDouble(item["Money"]), State = item["State"].ToString(), People = item["People"].ToString(), Times = Convert.ToDateTime(item["Times"].ToString()), Depict = item["Depict"].ToString(), }; list.Add(act); } //模拟排序操作字段Number 学号 if (SortOrder == "desc") list = list.OrderByDescending(c => c.Number).ToList(); else list = list.OrderBy(c => c.Number).ToList(); IList<ModleSt> usePageList = new List<ModleSt>(); //这里模拟分页操作 for (var i = 0; i < total; i++) { if (i >= (PageNow - 1) * pagesize && i < PageNow * pagesize) { usePageList.Add(list[i]); } } var usePagedata = new { Rows = usePageList, Total = total }; return Json(usePagedata); } }
3、在html里面通过ashx处理文件加载数据
3.1静态页面代码:一样班的加上JS跟css文件
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <link rel="stylesheet" type="text/css" href="../ScriptStyle/ligerUI/skins/Aqua/css/ligerui-all.css" /> <script type="text/javascript" src="../ScriptStyle/jquery/jquery-1.9.0.min.js"></script> <script type="text/javascript" src="../ScriptStyle/ligerUI/js/core/base.js"></script> <script type="text/javascript" src="../ScriptStyle/ligerUI/js/plugins/ligerGrid.js"></script> <script src="../ScriptStyle/ligerUI/js/plugins/ligerResizable.js" type="text/javascript"></script> <script src="../ScriptStyle/ligerUI/js/plugins/ligerCheckBox.js" type="text/javascript"></script> <script type="text/javascript" src="../ScriptStyle/DataOne.js"></script> <style type="text/css"> .divmain {width: 100%;margin: 0 auto;text-align: center; padding:20px; } </style> <script type="text/javascript"> $(function () { $("#MainGridTest").ligerGrid({ //width: 1000, columns: [ { display: "ID", name: "ID" }, { display: "推荐数", name: "Recommend" }, { display: "标题", name: "Title" }, { display: "内容", name: "Contents" }, { display: "介绍", name: "Introduce" }, { display: "原文网址", name: "WebHref" }, { display: "增加时间", name: "GetTime" }, { display: "文章发表时间", name: "ArticleTime" } ], url: "../Admin_Ajax/GetData_TypeJson.ashx", pageSize: 30, usePage: true, dataAction: "local", pageSizeOptions: [10, 20, 30, 50, 100]//可指定每页页面大小 }); }); </script> </head> <body> <br /><br /><br /> <h2 style="text-align:center;">html通过ashx获取数据LigerUI显示测试</h2><br /> <div class="divmain" id="MainGridTest"></div> </body> </html>
里面的url会儿机指向文件名就可以了 不能知道具体的方法,以前试过了就是不行,只能在里面做case判断加载方法还可以(这个是题外话了)
3.2、ashx页面:我注释的内容就是我最初的方法我以为这样转Json数据后可以获取到值,左弄右弄数据可以取到就是显示不出来,最后还是转为list 在实例在Getdatt里面才出来 前面就说了这个json格式要求就这样
using System; using System.Collections.Generic; using System.Linq; using System.Web; //添加命名空间 using System.Data; using System.Configuration; using System.Data.SqlClient; using Newtonsoft.Json; namespace LigerUITest20180523.Admin_Ajax { /// <summary> /// GetData_TypeJson 的摘要说明 /// </summary> public class GetData_TypeJson : IHttpHandler { public void ProcessRequest(HttpContext context) { string _sql = "select ID,Recommend,SUBSTRING(Title,0,30)AS Title,SUBSTRING(Contents,0,30)AS Contents ,SUBSTRING(Introduce,0,30)AS Introduce ,SUBSTRING(Webhref,0,20)AS WebHref , GetTime,ArticleTime from CnblogsList"; SqlConnection conn = new SqlConnection(); conn.ConnectionString = "Data Source=.;Initial Catalog=TestBase;Integrated Security=True"; if(conn.State== ConnectionState.Closed) { conn.Open(); } SqlCommand cmd = new SqlCommand(); cmd.CommandText = _sql; cmd.Connection = conn; SqlDataAdapter sda = new SqlDataAdapter(); sda.SelectCommand = cmd; DataSet ds = new DataSet(); sda.Fill(ds); //string AppendStr = "{Rows:"; //AppendStr = AppendStr + JsonConvert.SerializeObject(ds.Tables[0]).ToString(); //AppendStr = AppendStr + ",Total:20}"; //context.Response.Write(JsonConvert.SerializeObject(AppendStr)); var datas = ds.Tables[0].Rows; List<ModleSt> list = new List<ModleSt>(); var total = datas.Count; foreach (DataRow item in datas) { var act = new ModleSt() { ID =Convert.ToInt32( item["ID"].ToString()), Recommend = Convert.ToInt32(item["Recommend"].ToString()), Title = item["Title"].ToString(), Contents = item["Contents"].ToString(), Introduce = item["Introduce"].ToString(), WebHref = item["WebHref"].ToString(), GetTime = Convert.ToDateTime(item["GetTime"].ToString()), ArticleTime = Convert.ToDateTime(item["ArticleTime"].ToString()), }; list.Add(act); } var GetDatt = new { Rows = list, Total = total }; context.Response.Write(JsonConvert.SerializeObject(GetDatt)); } public class ModleSt { public int Recommend { get; set; } public int ID { get; set; } public string Title { get; set; } public string Contents { get; set; } public string Introduce { get; set; } public string WebHref { get; set; } public DateTime GetTime { get; set; } public DateTime ArticleTime { get; set; } } public bool IsReusable { get { return false; } } } }
MVC里面的实体类
public class ModleSt { public string Number { get; set; } public string WaterID { get; set; } public string Place { get; set; } public double Money { get; set; } public string State { get; set; } public string People { get; set; } public DateTime Times { get; set; } public string Depict { get; set; } }
效果
这个里面的内容是网络爬虫抓取的 有些html字符所以显示的不统一。这个也是在本地分页的不过我对里面的字段都做了截取30个字符 不截取会很卡。算是一个小小的优化吧
4、总结:细节决定成败,思路决定出路,态度决定一切。
这个Grid在html页面里面实现度娘了好多都没有找到相关的Demo,自己写一个留着以后看吧!弄了一晚上刚刚看到效果,关于碰到的错误只能说明当时没有好好看官方的API,LigerUI这个表格里面还有很多功能慢慢的去研究 先把雏形弄出来,因为公司也在用这个,里面的都是写好的,刚来公司不久有时间就看看。有时间在弄里面的搜索功能,,ligerGrid为的单元格渲染器等等。现在想真的是学无止境 哈哈还有好多。
刚毕业的我不知不觉已经过了一年,感觉一年还是没有多少长进。纸上得来终觉浅,绝知此事要躬行。也许有的路只有走下去才知道会遇见什么样的风景!夜深了差不多也该睡觉了。。。
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