不用找了,比较全的signalR例子已经为你准备好了(2)---JqGrid 服务端刷新方式-注释详细-DEMO源码下载

上次用客户端进行数据刷新的方式,和官方的Demo实现存在差异性,今天花了一点时间好好研究了一下后台时时刷新的方式.将写的代码重新update了一次,在这之前找过好多的资料,发现都没有找到好的例子,自己查了一下官方的DEMO然后本地实现了一次,结合Jqgrid的前端库,发现还是非常便捷的.不多说了,直接上代码了.

前端代码:

 <!DOCTYPE html>

 <html xmlns="http://www.w3.org/1999/xhtml">

 <head>

     <link href="Style/jquery-ui.css" rel="stylesheet" />

     <link href="Style/ui.jqgrid.css" rel="stylesheet" />

     <link href="Style/ui.jqgrid-bootstarp.css" rel="stylesheet" />

     <!--Reference the jQuery library. this library should be first one  -->

     <script src="Scripts/jquery-1.10.2.min.js"></script>

     <!--Reference the SignalR library. -->

     <script src="Scripts/jquery.signalR-2.0.2.js"></script>

     <!--Reference the jqgrid core library. -->

     <script src="Scripts/jquery.jqGrid.min.js"></script>

     <!--Reference the jqgrid language library. -->

     <script src="Scripts/grid.locale-en.js"></script>

     <!--Reference the autogenerated SignalR hub script. -->

     <script src='signalr/hubs'></script>

     <script type="text/javascript">

         var mydata = { State: "none", Price: 1.99, Brand: "none" };

         var ticket;

         $(function () {

             InitJqGrid();

             ticket = $.connection.pricehub;

             InitTicket(ticket);

             $.connection.hub.start().done(function () {

                 $("#btnstart").click(function () {

                     ticket.server.startTickets();

                 });

                 $("#btnstop").click(function () {

                     ticket.server.stopTickets();

                 });

             });

         })

         //

         function InitJqGrid() {

             $("#tbprice").jqGrid({

                 datatype: "local",

                 data: mydata,

                 height: 600,

                 width: 500,

                 multiselect: false,

                 autowidth: true,

                 rownumbers: true,

                 rowNum: 50, //if you don't set this ,the page size will just show about 20 row counts.

                 colNames: ['State', 'Price', 'Brand'],

                 colModel: [

                     { label: 'State', name: 'State', width: 60 },

                     { label: 'Price', name: 'Price', width: 80 },

                     { label: 'Brand', name: 'Brand', width: 80 }

                 ],

                 viewrecords: true, // show the current page, data rang and total records on the toolbar

                 caption: "Current Price Tag",

                 pager: "#jqGridPager"

             });

         }

         function refreshGrid($grid, results) {

             $grid.jqGrid('clearGridData')

                  .jqGrid('setGridParam', { data: results })

                  .trigger('reloadGrid');

         }

         function InitTicket(ticket) {

             //init the client function

             ticket.client.updateprice = function (tickets) {

                 refreshGrid($("#tbprice"), tickets);

             }

         }

     </script>

     <title>Price Price </title>

 </head>

 <body>

     <div>

         <input type="button" id="btnstart" value="Start" />

         <input type="button" id="btnstop" value="Stop" />

     </div>

     <div>

         <table id="tbprice"></table>

         <div id="jqGridPager"></div>

     </div>

 </body>

 </html>

后端代码:

 using Microsoft.AspNet.SignalR;

 using Microsoft.AspNet.SignalR.Hubs;

 using SignalRChat.Hubs.Data;

 using System;

 using System.Collections.Generic;

 using System.Linq;

 using System.Web;

 using System.Threading;

 namespace SignalRChat.Hubs

 {

     [HubName("pricehub")]

     public class PriceHub : Hub

     {

         private readonly TicketPrice _ticketprice = new TicketPrice();

         private readonly object _ticketrefreshlock = new object();

         private readonly object _ticketupdatelock = new object();

         //the time val should be static or in the static class

         private static Timer _timer;

         //the Interval of call function

         private readonly TimeSpan _updateInterval = TimeSpan.FromMilliseconds();

         private static string state = "close";

         [HubMethodName("startTickets")]

         public void StartTickets()

         {

             lock (_ticketrefreshlock)

             {

                 //the judge if it is necessary to init another thread to fresh the value

                 if (state == "close")

                 {

                     _timer = new Timer(RefreshTicket, null, _updateInterval, _updateInterval);

                     state = "open";

                 }

             }

         }

         [HubMethodName("stopTickets")]

         public void StopTickets()

         {

             lock (_ticketrefreshlock)

             {

                 if (state == "open")

                 {

                     if (_timer != null)

                     {

                         _timer.Dispose();

                         state = "close";

                     }

                 }

             }

         }

         private void RefreshTicket(object state)

         {

             lock (_ticketupdatelock)

             {

                 //return the tickets to client

                 BroadcastPriceTicketBoard(_ticketprice.GetAllTickets());

             }

         }

         //this is the reference for client broswer to update the price ,and pass the value to client .

         private void BroadcastPriceTicketBoard(List<TicketPrice> tickets)

         {

             //call the client javascript function to refresh data to jqgrid table(the caller proproty mean the data only to pass to caller ,not all clients)

             Clients.Caller.updateprice(tickets);

         }

     }

 }

效果图:

参考:

===>JqGridDemo<===

===>SignalR-StockTicker-Demo<===

项目文件:

巴特西

不用找了,比较全的signalR例子已经为你准备好了(2)---JqGrid 服务端刷新方式-注释详细-DEMO源码下载

===>官方StockTicker.zip<===

===>图中演示项目<===

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