Session problem, after refreshing the webpage, the session value becomes empty?

zippo中南海

As the title, I used sesssion to pass a value to another webpage. The first time it was used normally, but when I refreshed on that page, the session became empty? why? How to deal with it?

hellobn

Maybe not, let's see how you deal with Session in detail.

云逝风轻

????

How do you judge
if(session("")==""||session("")==null)

shenmue024

Is there any code written on that page to expire the session?

weh007

The session passed a value to another webpage???? Isn't it possible to go directly to sesion on that page?

苹果小刀

What does "I passed a value to another webpage with sesssion" mean?

Session lost, please refer to http://blog.csdn.net/coderdream/archive/2016/06/07/778090.aspx

royhau

Will it be dealt with by you on another page?

caix001

There are 8 out of 10 you have dealt with it on another page?

dydcool

It must be that your page emptied your Session, you check the code like if(!IsPostBack)

zippo中南海

I didn’t expect so many friends to give me advice and suggestions.
It's very strange, when I log in, I also use the session to judge, but after I log in, I refresh, the user name and permissions saved in the session are still there after refreshing! Strange! Why do I use the same method, there will be different results! !