Extjs 4.2 右键菜单树节点（，选择逆，废除)

var tree = new Ext.tree.TreePanel({
flex: 1,
animate: true,
autoScroll: true,
anchor: '100% 93%',
store: new Ext.data.TreeStore({
root:{
expanded: true,
text:'A',
children:[{
expanded: true,
text:'1',
children:[{
text:'2',
icon:'sysimg/icon/image.gif',
leaf:true,
id:'1_1',
checked:false
},{
text:'3',
icon:'sysimg/icon/layout.gif',
leaf:true,
id:'1_2',
checked:false
},{
text:'4',
icon:'sysimg/icon/image_add.png',
leaf:true,
id:'1_3',
checked:false
},{
text:'5',
icon:'sysimg/icon/out.gif',
leaf:true,
id:'1_4',
checked:false
},{
text:'6',
icon:'sysimg/icon/leave.gif',
leaf:true,
id:'1_5',
checked:false
},{
text:'7',
icon:'sysimg/icon/preview_16x16.gif',
leaf:true,
id:'1_5',
checked:false
},{
text:'8',
icon:'sysimg/icon/upload.gif',
leaf:true,
id:'1_7',
checked:false
},{
text:'9',
icon:'sysimg/icon/users--exclamation.gif',
leaf:true,
id:'1_8',
checked:false
},{
text:'10',
icon:'sysimg/icon/Pixies_020.gif',
leaf:true,
id:'1_9',
checked:false
}]
},{
expanded: true,
text:'B',
children:[{
text:'11',
icon:'sysimg/icon/Pixies_023.gif',
leaf:true,
id:'2_1',
checked:false
},{
text:'12',
icon:'sysimg/icon/Pixies_017.gif',
leaf:true,
id:'2_2',
checked:false
}]
},{
expanded: true,
text:'C',
children:[{
text:'13',
icon:'sysimg/icon/users--arrow.gif',
leaf:true,
id:'3_1',
checked:false
},{
text:'14',
icon:'sysimg/icon/users.gif',
leaf:true,
id:'3_2',
checked:false
},{
text:'15',
icon:'sysimg/icon/hammer.gif',
leaf:true,
id:'3_3',
checked:false
},{
text:'16',
icon:'sysimg/icon/bandaid--arrow.gif',
leaf:true,
id:'3_4',
checked:false
},{
text:'17',
icon:'sysimg/icon/user_go.gif',
leaf:true,
id:'3_5',
checked:false
},{
text:'18',
icon:'sysimg/icon/cog.gif',
leaf:true,
id:'3_6',
checked:false
},{
text:'19',
icon:'sysimg/icon/publish.gif',
leaf:true,
id:'3_7',
checked:false
},{
text:'20',
icon:'sysimg/icon/users--exclamation.gif',
leaf:true,
id:'3_8',
checked:false
},{
text:'21',
icon:'sysimg/icon/user-black.gif',
leaf:true,
id:'3_9',
checked:false
},{
text:'22',
icon:'sysimg/icon/leaf.gif',
leaf:true,
id:'3_10',
checked:false
}]
}]
}
}),
listeners:{
'itemcontextmenu':function(menutree,record,items,index,e){
e.preventDefault();
e.stopEvent();
//推断是否为叶子结点
if(record.data.leaf==false){
var nodemenu = new Ext.menu.Menu({
floating:true,
items:[{
text:'全选',
handler:function(){
for( var i =0;i<record.data.children.length;++i){
//设置结点checked属性为true
record.childNodes[i].set('checked',true);
}
}
},{
text:'反选',
handler:function(){
for( var i =0;i<record.data.children.length;++i){
if(record.childNodes[i].data.checked == false) {
//设置结点checked属性为true
record.childNodes[i].set('checked',true)}
else {
//设置结点checked属性为true
record.childNodes[i].set('checked',false);
}
}
}
},{
text:'撤销所有',
handler:function(){
for( var i =0;i<record.data.children.length;++i){
//设置结点checked属性为false
record.childNodes[i].set('checked',false);
}
}
}]

});
nodemenu.showAt(e.getXY());
}
}
}
});