ext树菜单的小问题一个

ext树菜单的小问题一个

下面是html代码：

< html >
< head >
< meta  http-equiv ="Content-Type"  content ="text/html; charset=utf-8" >
< title > Reorder TreePanel </ title >
< link  rel ="stylesheet"  type ="text/css"  href ="../../resources/css/ext-all.css"   />

     <!--  GC  -->
      <!--  LIBS  -->
      < script  type ="text/javascript"  src ="../../adapter/ext/ext-base.js" ></ script >
      <!--  ENDLIBS  -->

     < script  type ="text/javascript"  src ="../../ext-all.js" ></ script >
 
</ head >
< body >
< script >
    

function  lookupNode(_root,id){
     if (_root){
         var  treeId  =  _root.attributes['id'];
         if (id  ==  treeId){
             return  _root;
        }
         var  nodes  =  _root.childNodes;
         if (nodes.length == 0 ){
              return   null ;
        }
         for ( var  i = 0 ; i < nodes.length; i ++ ){
             if (nodes[i] != null ){
                 return  lookupNode(nodes[i],id);
            }
        }
    }
}
    
Ext.BLANK_IMAGE_URL  =  'http: // localhost:8080/greatwall/script/ext/resources/images/default/s.gif';
function  insertTreeNode(root,pid,nodeConfig){
     var  pNode  =  lookupNode(root,pid);
    alert('pNode => ' + pNode);
    
     if (pNode  ==   null ){
        root.appendChild( new  Ext.tree.TreeNode(nodeConfig));
    } else {
        pNode.appendChild( new  Ext.tree.TreeNode(nodeConfig));
    }
}

var  pWinCmpId  =   null ;


Ext.onReady( function () {

Ext.QuickTips.init();
Ext.form.Field.prototype.msgTarget  =  'qtip';


/* *****************下面开始Body内JavaScript代码输出*********************** */


function  treeClick(node, e){
    
}

var  sysFunClassTree_root  =   new  Ext.tree.TreeNode({text:  " Autos " ,draggable:  false ,id:  " source " });
insertTreeNode(sysFunClassTree_root,'',{ " text " : " Form控件 " , " leaf " : false , " id " : " A00001 " });
insertTreeNode(sysFunClassTree_root,'A00001',{ " text " : " checkbox控件 " , " pid " : " A00001 " ,id: " 000A01 " , " leaf " : false });
insertTreeNode(sysFunClassTree_root,'A00001',{ " text " : " comboBox控件 " , " pid " : " A00001 " ,id: " 000B01 " , " leaf " : false });
insertTreeNode(sysFunClassTree_root,'000B01',{ " text " : " radio控件 " , " pid " : " 000B01 " ,id: " 000C01 " , " leaf " : false });
insertTreeNode(sysFunClassTree_root,'000C01',{ " text " : " radio控件222 " , " pid " : " 000C01 " ,id: " 000C01x " , " leaf " : true });
 
 
var  sysFunClassTree  =   new  Ext.tree.TreePanel({
  border:  true ,
  root: sysFunClassTree_root, rootVisible:  true ,
  name:'sysFunClassTree',region:'center',width: 250 ,nodename:'tree',pidname:'pid',idname:'id',textname:'text',dataXml:' / tagsdemo / tree / data.xml',id:'sysFunClassTree'
});
 
sysFunClassTree.on( " click " , treeClick);

var  viewport_cdb32ddef82f42e3a11d965320b7d09e  =   new  Ext.Viewport({
  layout:'border',
  items:[sysFunClassTree]
});

sysFunClassTree_root.expand();
 

 

/* *****************Body内JavaScript代码输出结束*********************** */
});
</ script >

< div  id ="divTree" ></ div >
</ body >
</ html >

问题很简单，希望可以利用id获取到对应的node。这个很多树菜单都实现了接口，但是ext好像没有，难道需要自己写遍历？

修改后代码如下：对遍历函数处理了一下，树菜单显示正常。

function  lookupNode(_root,id){
     if (_root){
         var  treeId  =  _root.attributes['id'];
         if (id  ==  treeId){
             return  _root;
        }
         var  nodes  =  _root.childNodes;
         if (nodes.length == 0 ){
              return   null ;
        }
         for ( var  i = 0 ; i < nodes.length; i ++ ){
             if (nodes[i] != null ){
                 var  xx  =  lookupNode(nodes[i],id);
            }
        }
         return  xx;
    }
}