dhtmlxTree 使用示例
http://dhtmlx.com 包含目录树、菜单、工具条等很多js控件，功能十分强大。
现将dhtmlxTree 使用样例记录如下(包括目录树、上下文菜单)：
1、所需js文件
dhtmlxcommon.js
dhtmlxtree.js
dhtmlxtree_json.js
//菜单控件所需的js
dhtmlxprotobar.js
dhtmlxmenubar.js
dhtmlxmenubar.js
2、sample.html代码：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="./dhtmlxcommon.js"></script>
<script src="./dhtmlxtree.js"></script>
<script language="JavaScript" src="./extend/dhtmlxtree_json.js"></script>
<script language="JavaScript" src="./dhtmlxprotobar.js"></script>
<script language="JavaScript" src="./dhtmlxmenubar.js"></script>
<script language="JavaScript" src="./dhtmlxmenubar_cp.js"></script>
<link rel="STYLESHEET" type="text/css" href="./dhtmlxtree.css">
<link rel="STYLESHEET" type="text/css" href="./context.css">
<link rel="STYLESHEET" type="text/css" href="./dhtmlxmenu.css">
</head>
<body>
<div id="treeBox" style="width:200;height:200"></div>
<script>
//init menu
aMenu=new dhtmlXContextMenuObject('120',0,"images/");
aMenu.menu.loadXML("./_context.xml");
aMenu.setContextMenuHandler(onMenuClick);
tree=new dhtmlXTreeObject('treeBox',"100%","100%",0);
tree.setImagePath("images/");
tree.enableCheckBoxes(true);
tree.enableDragAndDrop(true);
tree.enableContextMenu(aMenu); //link context menu to tree
tree.loadCSV("./data.txt");//for loading from file
function onMenuClick(id,s){ alert("Menu item "+id+" was clicked"+s); }
</script>
</body>
</html>
3、数据文件data.txt
1,0,node 1
2,1,node 1.1
3,2,node 1.1.1
4,0,node 2
bd2f46a212ffae3b011305afd5eb0108,4,node 2.1
6,1,node 1.2
4、菜单文件_context.xml
<?xml version='1.0' ?>
<menu absolutePosition="auto" mode="popup" maxItems="8" globalCss="contextMenu" globalSecondCss="contextMenu" globalTextCss="contextMenuItem">
<MenuItem name="Red" src="./images/red.gif" id="edit_Red"/>
<MenuItem name="Green" src="./images/green.gif" id="edit_Green"/>
<MenuItem name="Blue" src="./images/blue.gif" id="edit_Blue"/>
<MenuItem name="Other<!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter" /> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0" /> <v:f eqn="sum @0 1 0" /> <v:f eqn="sum 0 0 @1" /> <v:f eqn="prod @2 1 2" /> <v:f eqn="prod @3 21600 pixelWidth" /> <v:f eqn="prod @3 21600 pixelHeight" /> <v:f eqn="sum @0 0 1" /> <v:f eqn="prod @6 1 2" /> <v:f eqn="prod @7 21600 pixelWidth" /> <v:f eqn="sum @8 21600 0" /> <v:f eqn="prod @7 21600 pixelHeight" /> <v:f eqn="sum @10 21600 0" /> </v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect" /> <o:lock v:ext="edit" aspectratio="t" /> </v:shapetype><v:shape id="图片_x0020_1" o:spid="_x0000_i1025" type="#_x0000_t75" alt="http://www.blogjava.net/Images/dot.gif" style='width:11.25pt;height:15pt; visibility:visible;mso-wrap-style:square'> <v:imagedata src="file:///C:\Users\orchid\AppData\Local\Temp\msohtmlclip1\01\clip_image001.gif" o:title="dot" /> </v:shape><![endif]--><!--[if !vml]--><!--[endif]-->" src="" id="outher" width="120px" panelWidth="120">
<MenuItem name="Yellow" src="./images/yellow.gif" id="edit_Yellow"/>
<MenuItem name="White" src="./images/white.gif" id="edit_White"/>
</MenuItem>
</menu>
注：dhtmlxTree 标准版不支持菜单功能，所以需要对dhtmlxtree.js做些修改，在脚本的最后面加上如下方法：
<!--[if !supportLineBreakNewLine]-->
<!--[endif]-->
dhtmlXTreeObject.prototype.enableContextMenu=function(menu)
{
if(menu) this.cMenu=menu
};