Extjs4.x ，tree.getStore().load(); 重复加载多次的问题，

Question

使用 tree.getStore().load() 时，虽然最后都重新加载了，但居然会访问服务器十多次，这可如何是好？

关键自带如下：
[code="js"]
var store = Ext.create('Ext.data.TreeStore', {
fields:[{name:"url",type:"string"},{name:"pids",type:"string"},{name:"text",type:"string"}],
root: {
expanded:true,
text:"Root",
id:"0",
pids:"0,"
} ,
proxy: {
type: 'ajax',
url: '/getMenuData',
extraParams: {"test": "1"},
method: "POST",
reader: {
type: 'json'
}
},
autoLoad: true
});

var tree = Ext.create('Ext.tree.Panel', {
layout:'fit',
width: 200,
bodyPadding: 5,
store: store,
autoDestroy:true,
rootVisible:true,
title:"测试"
});

[/code]

，使用 tree.getStore().load()方法的时候，
怎么会重复加载多次?
怎么会这样?

Answer 1

贴上去 就解决了

/*
Overrides for fixing clearOnLoad for TreeStore
*/
Ext.override(Ext.data.TreeStore, {
load: function(options) {
options = options || {};
options.params = options.params || {};

var me = this,
node = options.node || me.tree.getRootNode(),
root;

// If there is not a node it means the user hasnt defined a rootnode yet. In this case lets just
// create one for them.
if (!node) {
node = me.setRootNode({
expanded: true
});
}

if (me.clearOnLoad) {
node.removeAll(false);
}

Ext.applyIf(options, {
node: node
});
options.params[me.nodeParam] = node ? node.getId() : 'root';

if (node) {
node.set('loading', true);
}

return me.callParent([options]);
}
});