sys is undefined

I am using a peice of javascript which has

ys.WebForms.PageRequestManager.getInstance()

I am getting the following error

Sys us undefined.

I am not sure what to do?
Mr_ShawAsked:
Who is Participating?
 
Tomarse111Connect With a Mentor Commented:
Ajax (Asynchronous JAvaScript and XML) is really only an enhancement in JavaScript that allows Web pages to be more interactive and behave like local applications. So again as this is a .Net feature, unless you are using .Net to interact with your Ajax calls, it cannot be used.
0
 
Tomarse111Commented:
I might be wrong but isn't that part of the .NET framework and won't work in regular Javascript functions.
0
 
Mr_ShawAuthor Commented:
what about ajax
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.