Question

Extjs如何实现单击展开Tree的子节点

用了singleClickExpand: true,不行啊
用了listeners: {
"click": function(node, e) {
if (node.expanded == false) {
node.expand();
}
else {
node.collapse();
}
}
},
也不行啊！郁闷了！

我的代码如下：
var callMenu = new Ext.TreePanel(
{
border: false,
rootVisible: false,
useArrows: true,
root: {
expanded: true,
children: [{
expanded: true,
text: "行政科室",
children: [
{ text: "科室1", leaf: true },
{ text: "科室2", leaf: true },
{ text: "科室3", leaf: true },
{ text: "科室4", leaf: true },
{ text: "科室5", leaf: true },
{ text: "科室6", leaf: true },
{ text: "科室7", leaf: true },
{ text: "科室8", leaf: true },
{ text: "科室9", leaf: true },
{ text: "科室10", leaf: true}]
}, {
expanded: true,
text: "医技科室",
children: [
{ text: "科室1", leaf: true },
{ text: "科室2", leaf: true },
{ text: "科室3", leaf: true },
{ text: "科室4", leaf: true },
{ text: "科室5", leaf: true },
{ text: "科室6", leaf: true },
{ text: "科室7", leaf: true },
{ text: "科室8", leaf: true },
{ text: "科室9", leaf: true },
{ text: "科室10", leaf: true}]
}
]
}
});
我用的是4.0的库，一切正常就是不能实现单击展开树，求解

Answer 1

这样做就行~~~
listeners : {
click : function(n) {
if (n.leaf) {

} else {
viewTree.expandPath(viewTree.getNodeById(n.id).getPath());// 展开某一节点
}
}
},

追问

试了，不行，我找到一个办法可以单击展开或者单击收回节点，但是问题是4.0的API里没有判断当前节点是否为展开状态，郁闷，和3.0不一样啊！

Answer 2

唉，我也在解决这个问题，有答案了没，求解决方案 我用的也是4.0的