asp.net4.0 中 如何使用ajax.net 技术实现dropdownlist和label实现联动（C#语言）？
推荐回答（3个）
dropdownlist 解释成html就是select，
把你的DropDownList的AutoPostBack属性设为true
你的列表只有一项么？
哦，你把DropDownList的属性AutoPostBack设为True吧；它原本是Flase；也就是说它原本默认的就是不回发的啊……把它的属性设为True，就回发啊……就可以联动啦啊……
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