效果图:

 

function loadCombxTree() {
    $('#CompanyId').combotree({
        url: '/admin/CompanyAdmin/Hanlder/CompanyService.ashx?function=getCompanyComboxTreeList',
        animate: true,
        loadFilter: function (rows) {
            return convert3(rows);
        },
        lines: true,
        dataPlain: true,//该属性用以启用当前 easyui-tree 控件对平滑数据格式的支持
        toggleOnClick: false,
        checkbox: true,
        enableContextMenu: false,
        onClick: function (node) {
            $("#CompanyId").combotree("setText", node.text);
            $('#CompanyId').combotree("hidePanel");
            $("#OrgName").val(node.text);
        },
    });

}

ashx返回的数据是JSON形式

 

<script src="/resources/js/treeJs/Node.js"></script>
<script src="/resources/js/treeJs/Tree.js"></script>
<script src="/resources/js/treeJs/treeFunction.js"></script>
<script src="/resources/js/bootstrap/dataTables2/jquery.dataTables.min.js"></script>