extjs editorgrid刷新问题

[gary412]

link rel="stylesheet" type="text/css" href="extjs/resources/css/ext-all.css" />
<script type="text/javascript" src="extjs/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="extjs/ext-all.js"></script>
<script type="text/javascript">
Ext.onReady(function(){
Ext.QuickTips.init();
num=1;
var data=[
['','','','']
];
js=new Ext.data.JsonStore({
data:data,
fields:["cnum","cxing","cchang","ckuan"]
});
var colM=new Ext.grid.ColumnModel([{

header:"车号",
width:200,
dataIndex:"cnum",
editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))},
{header:"车型",
width:120,
dataIndex:"cxing",
editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))
},

{header:"车长",

dataIndex:"cchang",

width:120,

editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))},

{header:"车宽",

dataIndex:"ckuan",

width:120,

editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))}

])
record=Ext.data.Record.create([
{name:'cnum'}
,

{name:'cxing'}
,

{name:'cchang'}
,

{name:'ckuan'}

]);
var dgrid= new Ext.grid.EditorGridPanel({
autoEncode:true,
frame:true,
width:600,
height:300,
clicksToEdit:1,
tbar:[
{pressed:true,text:'添加',handler:function(){
var initValue = {cnum:'',cxing:'',cchang:'',ckuan:''};
var p = new record(
initValue
);
js.insert(num,p);
num=num+1;
p.dirty=true;
p.modified=initValue;
if(js.modified.indexOf(p)==-1){
js.modified.push(p);
}
}
},
{xtype:"tbseparator"},
{pressed:true,text:'删除',handler:function(){
//Ext.Msg.confirm('信息','确定要删除?',

if(num==1){Ext.MessageBox.show({title:'系统提示',msg:'已经没有可供删除的记录！'})}
else {js.remove(js.getAt(num-1));num=num-1;}
}
},
{pressed:true,text:'刷新',handler:function(){ Ext.getCmp('grid').getGrid.store=js;
}}

],
cm:colM,
store : js,
//width:300,
//heigth:200,
autoShow:true,
renderTo:'grid'
})
})

</script>
<div id="grid"></div>



我的想法是给grid的store赋初值，可测试结果不行，不知道什么原因，高手指点

[hookee]

<link rel="stylesheet" type="text/css" href="extjs/resources/css/ext-all.css" /> 
<script type="text/javascript" src="extjs/adapter/ext/ext-base.js"> </script> 
<script type="text/javascript" src="extjs/ext-all.js"> </script> 
<script type="text/javascript"> 
Ext.onReady(function(){ 
Ext.QuickTips.init(); 
num=1; 
var data=[ 
        ['1','2','3','4'] 
        ]; 
js=new Ext.data.Store({
    proxy:new Ext.data.MemoryProxy(data),
	reader:new Ext.data.ArrayReader({},["cnum","cxing","cchang","ckuan"])
 }); 
 js.load();
     var colM=new Ext.grid.ColumnModel([{ 

      header:"车号", 
      width:200, 
      dataIndex:"cnum", 
      editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))}, 
        {header:"车型", 
        width:120, 
        dataIndex:"cxing", 
        editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false})) 
        }, 

{header:"车长", 

dataIndex:"cchang", 

width:120, 

editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))}, 

{header:"车宽", 

dataIndex:"ckuan", 

width:120, 

editor:new Ext.grid.GridEditor(new Ext.form.TextField({allowBlanlk:false}))} 

]) 
        record=Ext.data.Record.create([ 
{name:'cnum'} 
, 

{name:'cxing'} 
, 

{name:'cchang'} 
, 

{name:'ckuan'} 

]); 
      var dgrid= new Ext.grid.EditorGridPanel({ 
      autoEncode:true, 
  frame:true, 
  width:600, 
  height:300, 
  clicksToEdit:1, 
      tbar:[ 
    {pressed:true,text:'添加',handler:function(){ 
    var initValue = {cnum:'',cxing:'',cchang:'',ckuan:''}; 
    var p = new record( 
    initValue 
    ); 
    js.insert(num,p); 
    num=num+1; 
    p.dirty=true; 
          p.modified=initValue; 
          if(js.modified.indexOf(p)==-1){ 
                        js.modified.push(p); 
                        } 
          }                            
    }, 
    {xtype:"tbseparator"}, 
    {pressed:true,text:'删除',handler:function(){ 
    //Ext.Msg.confirm('信息','确定要删除?', 
    
                            if(num==1){Ext.MessageBox.show({title:'系统提示',msg:'已经没有可供删除的记录！'})} 
                            else {js.remove(js.getAt(num-1));num=num-1;} 
          } 
          }, 
          {pressed:true,text:'刷新',handler:function(){ Ext.getCmp('grid').getGrid.store=js; 
}} 
    
  ], 
  cm:colM, 
        store : js, 
  //width:300, 
  //heigth:200, 
  autoShow:true, 
  renderTo:'grid' 
  }) 
  }) 

</script> 
<div id="grid"> </div> 

[gary412]

ls什么意思没看懂

[gary412]

分太少了结贴，换号送200分