How to access JS variable in C#

Question

Let\'s say I have

500

(Context: asp.net aspx page) How do I allow a c# code access that value?

<

Answer 1

You can use a server-side div instead, like i.e;

500

Then you can access it and its contents server-side.

Alternatively;

UPDATE: After the question was clarified, it is clear this won't work. The only solution then is to use javascript to get the value, then AJAX to send it to the server.