【发布时间】:2014-11-18 02:06:52
【问题描述】:
我在ExtJS 4.2.1. 中有一个树形面板
树数据显示在面板中,但每次展开节点时,我都会在节点下方获得相同的信息,因此无限。
我没有得到真正的儿童物品。您可以理解 json 响应具有父节点的子节点,但不知何故,每次我展开一个节点时,都会完成对我的服务的 ajax 调用,因此我再次获得所有树数据结构。
这是我的 json:
[
{
"text": "QUALITY AREA",
"cls": null,
"expanded": false,
"checked": false,
"leaf": false,
"children": [
{
"text": "JUNIOR A",
"cls": null,
"expanded": false,
"checked": false,
"leaf": true,
"children": null
}
]
},
{
"text": "HUMAN RESOURCES",
"cls": null,
"expanded": false,
"checked": false,
"leaf": false,
"children": [
{
"text": "SENIOR C",
"cls": null,
"expanded": false,
"checked": false,
"leaf": true,
"children": null
}
]
},
{
"text": "IT DEPARTMENT",
"cls": null,
"expanded": false,
"checked": false,
"leaf": false,
"children": [
{
"text": "JUNIOR E",
"cls": null,
"expanded": false,
"checked": false,
"leaf": true,
"children": null
}
]
},
{
"text": "TRAINING",
"cls": null,
"expanded": false,
"checked": false,
"leaf": false,
"children": [
{
"text": "JUNIOR F",
"cls": null,
"expanded": false,
"checked": false,
"leaf": true,
"children": null
}
]
},
{
"text": "BENEFITS & COMP",
"cls": null,
"expanded": false,
"checked": false,
"leaf": false,
"children": [
{
"text": "SENIOR D",
"cls": null,
"expanded": false,
"checked": false,
"leaf": true,
"children": null
}
]
},
{
"text": "ADMIN",
"cls": null,
"expanded": false,
"checked": false,
"leaf": false,
"children": [
{
"text": "CHIEF A",
"cls": null,
"expanded": false,
"checked": false,
"leaf": true,
"children": null
}
]
}
],
这是我的树形面板:
{
xtype: 'treepanel',
itemId: 'treepaneltest',
store: store,
rootVisible: false,
useArrows: true,
frame: true,
title: 'Check Tree',
width: 500,
height: 250,
}
我是否必须更改我的 json 中的某些内容?
【问题讨论】:
-
需要设置
loaded: true,否则展开节点时会再次尝试加载。 -
我必须在哪里设置该属性?
-
在您的 json 中添加 'loaded:true' 属性,如 'checked'
标签: extjs extjs4 extjs4.1 extjs4.2