若再asp.net项目中定义了dropdownlist onSelectIndexChanged 事件,后台代码也写好了,但浏览和调试时都没有效果,就看一下DropDownList1.AutoPostBack是否设置为true 相关文章: 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-02-12 2021-08-02 2022-12-23