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jQuery右鍵菜單contextMenu實例

標簽:
JQuery


ui代码:

View Code    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">   <html xmlns="http://www.w3.org/1999/xhtml">   <head runat="server">       <title></title>       <%-- --%>        <script class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="Script/jquery.js" type="text/javascript"></script>        <script class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="Script/jquery.contextmenu.r2.js" type="text/javascript"></script>        <style type="text/css">           .SelectedRow           {               background: yellow;           }           .contextMenu           {               display: none;           }       </style>        <script type="text/javascript">           $(function() {               $('#GridView1 tr:gt(0)').contextMenu('menu',            {                bindings:             {                 'add': function(t, target) {                     alert('Trigger:' + t.id + ' 增加' + " taget by:" + $("td:eq(0)", target).text());                 },                 'delete': function(t, target) {                     alert('Trigger:' + t.id + ' 删除' + " taget by:" + $("td:eq(0)", target).text());                     $(target).remove();                 },                 'save': function(t, target) {                     alert('Trigger:' + t.id + ' 保存' + " taget by:" + $("td:eq(0)", target).text());                 },                 'About': function(t, target) {                     alert('Code by http://www.cnblogs.com/whitewolf/');                 }             },                onShowMenu: function(e, menu) {                     if (parseInt($("td:eq(0)", e.currentTarget).text()) > 10) {                        $("#save", menu).remove();                    }                    $(e.currentTarget).siblings().removeClass("SelectedRow").end().addClass("SelectedRow");                    return menu;                }             });            })       </script>    </head>   <body>       <form id="form1" runat="server">       <div>           <div class="contextMenu" id="menu">               <ul>                   <li id="add">                       <img class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="image/Home_Age_UnSelect.jpg" width="16" height="16" />                       编辑</li>                   <li id="delete">                       <img class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="image/Home_Age_UnSelect.jpg" width="16" height="16" />                       删除</li>                   <li id="save">                       <img class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="image/Home_Age_UnSelect.jpg" width="16" height="16" />                       保存</li>                   <li id="About">                       <img class="lazyload" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC" data-original="image/Home_Age_UnSelect.jpg" width="16" height="16" />                       关于</li>               </ul>           </div>           <asp:GridView ID="GridView1" runat="server" Width="100%" BackColor="White" BorderColor="#CCCCCC"               BorderStyle="None" BorderWidth="1px" CellPadding="3">               <RowStyle ForeColor="#000066" />               <FooterStyle BackColor="White" ForeColor="#000066" />               <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />               <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />               <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />           </asp:GridView>       </div>       </form>   </body>   </html>  复制代码

注:

1:contextMenu我们互根据数据记录隐藏一些菜单项,这个可以在onShowMenu事件中,根据

e.currentTarget触发源获取数据,在根据remove菜单项。比如测试用例中的:

如果id>10则不允许保存   if (parseInt($("td:eq(0)", e.currentTarget).text()) > 10) {                       $("#save", menu).remove();

2:事件注册:根据第二个参数target获取数据,第一个参数t获取菜单项。比如:

'add': function(t, target) {                    alert('Trigger:' + t.id + ' 增加' + " taget by:" + $("td:eq(0)", target).text());                },

 在这里需要用到ajax和服务端通讯,可以采用我的上一篇组件:jQuery Ajax 仿AjaxPro.Utility.RegisterTypeForAjax辅助方法,将会更简单应用ajax通讯。

在我下的源代码中这里有点问题:

原来的,这里的currentTarget始终为undefined。

if (!!cur.onShowMenu) menu = cur.onShowMenu(e, menu);    $.each(cur.bindings, function(id, func) {       $('#' + id, menu).bind('click', function(e) {           hide();           func(trigger, currentTarget);       });   });

我修改后:

if (!!cur.onShowMenu) menu = cur.onShowMenu(e, menu);           $.each(cur.bindings, function(id, func) {              $('#' + id, menu).bind('click', function(ev) {                  hide();                  func(trigger, e.currentTarget);              });          });

这样就一切正常了。

内容很少,一切就在此打断,结束 ,over!

其他资料jQuery目录:  我jQuery系列之目录汇总

附件下载:Demo

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