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我想在一个有很多学校记录的tree view里面放一个button，点击其中一个学校后，进入到相应学校的学院的tree view。但是，我不知道这button按钮的的事件怎么写。请大家帮帮忙，不胜感激！
这里有你想要的. http://shine-it.net/index.php/topic,2059.0.html
