Ext.TreePanel 树形目录显示复选框

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extjs

EXT JavaScript CSS HTML J#

Ext.onReady(function() {
            Ext.QuickTips.init();
            Ext.BLANK_IMAGE_URL = "extjs/resources/images/default/s.gif";
            var mytree = new Ext.tree.TreePanel({
                        el : "container",
                        animate : true,
                        title : "简单Extjs动态树",
                        collapsible : true,
                        enableDD : true,
                        enableDrag : true,
                        rootVisible : true,
                        autoScroll : true,
                        autoHeight : true,
                        width : 150,
                        lines : true
                    });

            // 根节点
            var root = new Ext.tree.TreeNode({
                        id : "root",
                        text : "根节点",
                        checked : false
                    });
            for (var j = 1; j < 4; ++j) {
                var node = root.appendChild(new Ext.tree.TreeNode({
                            text : '客户企业A' + j,
                            allowDrag : false,
                            checked : false
                        }));
                for (var n = 1; n < 4; ++n) {
                    node.appendChild(new Ext.tree.TreeNode({
                                text : '栏目' + n,
                                allowDrag : false,
                                checked : false
                            }));
                }
            }
            mytree.setRootNode(root);
            mytree.render();
            mytree.on('checkchange', function(node, checked) {
                        node.expand();
                        node.attributes.checked = checked;
                        node.eachChild(function(child) {
                                    child.ui.toggleCheck(checked);
                                    child.attributes.checked = checked;
                                    child.fireEvent('checkchange', child,
                                            checked);
                                });
                    }, mytree);
            var button = new Ext.Button({
                        text : "选中id",
                        handler : function() {
                            var b = mytree.getChecked();
                            var checkid = new Array;// 存放选中id的数组
                            for (var i = 0; i < b.length; i++) {
                                checkid.push(b[i].text);// 添加id到数组
                            }
                            alert(checkid.toString());
                        }
                    }).render(document.body, "btn");

        });

treenode.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <head>
        <title>treenode复选框</title>

        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="this is my page">
        <meta http-equiv="content-type" content="text/html; charset=UTF-8">

        <link href="extjs/resources/css/ext-all.css" rel="stylesheet"
            type="text/css" />
        <script src="extjs/adapter/ext/ext-base.js" type="text/javascript"></script>
        <script src="extjs/ext-core.js" type="text/javascript"></script>
        <script src="extjs/ext-all.js" type="text/javascript"></script>
        <script type="text/javascript" src="treenode.js"></script> 
    </head>

    <body>
        <div id="container">
        </div>
        <br />
        <br />
        <div id="btn"></div>  
    </body>
</html>

效果如下