Save viewstate in a user control

Question

I've problem with a user control in asp.net

I've created a usercontrol that save a value in the viewstate, now the problem is that on postback the viewstate loses this value

Why? Should I do something in particular?

If necessary tonight I'll load some code.

Answer 1

可能是因为在父控件上禁用了ViewState，请检查您是否在任何地方都没有EnableViewState=false ，因为这会阻止您检索页面回发中的值。