如果您想将dropdownlist绑定到gridview下，请使用gridview的data_row事件.

Use data_row event of gridview if you want to bind dropdownlist under gridview. That''s could be possible by this..

如果遇到数据绑定问题，我建议您去dapfor.com.您将获得代码和理论上的完整解决方案.

I''ll suggest you to go for dapfor.com if you are facing problem with databinding. you will get complete solution with code as well as theoretical.