第一种：
直接通过TreePanel中的Config Option中的listener来添加，代码如下：
var TreePan = new Ext.tree.TreePanel({
id: ‘TreePan‘,
title: "侧边栏",
useArrows: true,
width: 240,
height: 660,
region: ‘west‘,
frame: true,
autoScroll: true,
enableDD: false,
containerScroll: true,
draggable: false,
root: root,
rootVisible: false,
collapsible: true,
collapsed: true,
animate: true,
listeners: {
‘click‘: function(node, e) {
if (node.isLeaf()) {
var newWin = new Ext.Window({
width: 745,
height: 529,
title: "现用技术标准",
html: "<iframe src=/"Manage/VolunteerShipInfo.aspx/" marginheight=/"0/" marginwidth=/"0/" width=/"727/" height=/"500/"></iframe>"
});
newWin.show();
}
}
}
失败，表现为程序对 “node.isLeaf()”这个方法的识别有问题，加上这条if语句，则点击所有节点没反应（包括非叶节点）；去掉这个if，则点所有节点都会出现新窗口（包括非叶节点）。
第二种：
使用TreePan.on来添加Event，代码如下：
var TreePan = new Ext.tree.TreePanel({
id: ‘TreePan‘,
title: "侧边栏",
useArrows: true,
width: 240,
height: 660,
region: ‘west‘,
frame: true,
autoScroll: true,
enableDD: false,
containerScroll: true,
draggable: false,
root: root,
rootVisible: false,
collapsible: true,
collapsed: true,
animate: true,
}
TreePan.on(‘click‘, BiaoZhunClick);
function BiaoZhunClick(node, e) {
if (node.leaf) {
// e.stopEvent();
var newWin = new Ext.Window({
width: 745,
height: 529,
title: "现用技术标准",
html: "<iframe src=/"Manage/VolunteerShipInfo.aspx/" marginheight=/"0/" marginwidth=/"0/" width=/"727/" height=/"500/"></iframe>"
});
newWin.show();
}
}
失败，表现如方法二。
第三种：
通过查API Document，知道可以用addListener这个方法来给TreePanel添加Event，于是尝试如下：
var TreePan = new Ext.tree.TreePanel({
id: ‘TreePan‘,
title: "侧边栏",
useArrows: true,
width: 240,
height: 660,
region: ‘west‘,
frame: true,
autoScroll: true,
enableDD: false,
containerScroll: true,
draggable: false,
root: root,
rootVisible: false,
collapsible: true,
collapsed: true,
animate: true,
}
TreePan.addListener(‘click‘, BiaoZhunClick);
function BiaoZhunClick(node, e) {
if (node.leaf) {
// e.stopEvent();
var newWin = new Ext.Window({
width: 745,
height: 529,
title: "现用技术标准",
html: "<iframe src=/"Manage/VolunteerShipInfo.aspx/" marginheight=/"0/" marginwidth=/"0/" width=/"727/" height=/"500/"></iframe>"
});
newWin.show();
}
}
成功，终于可以实现只有在点击叶节点时才弹出浮窗了。
转自：http://blog.csdn.net/scythev/article/details/4818610