EXT 的 Treegrid 需要什么格式的JSON数据 ?
我现在用的是普通的GRIDPANEL    改成Treegrid后并未报错   但数据不显示
是因为后台的JSON格式不正确吗 ?   JSON如下：

{root:[{"MODULE_CD":1,"MODULE_NM":"客户产品依赖","PARENT_CD":0,"PARENT_NM":"","URL":"","INDATE":"","UPTDATE":""},{"MODULE_CD":28,"MODULE_NM":"仓库数据维护","PARENT_CD":17,"PARENT_NM":"","URL":"","INDATE":"","UPTDATE":""},{"MODULE_CD":31,"MODULE_NM":"工厂统计报表","PARENT_CD":0,"PARENT_NM":"","URL":"","INDATE":"","UPTDATE":""}],success:true}



------解决方案--------------------
肯定不正确了，ext不是有demo，自己看demo提供的数据源，而且是treestore，grid的store数据源不行

{"text":".","children": [

    {

        task:'Project: Shopping',

        duration:13.25,

        user:'Tommy Maintz',

        iconCls:'task-folder',

        expanded: true,

        children:[{

            task:'Housewares',

            duration:1.25,

            user:'Tommy Maintz',

            iconCls:'task-folder',

            children:[{

                task:'Kitchen supplies',

                duration:0.25,

                user:'Tommy Maintz',

                leaf:true,

                iconCls:'task'

            },{

                task:'Groceries',

                duration:.4,

                user:'Tommy Maintz',

                leaf:true,

                iconCls:'task',

                done: true

            },{

                task:'Cleaning supplies',

                duration:.4,

                user:'Tommy Maintz',

                leaf:true,

                iconCls:'task'

            },{

        &