How to stop execution in JQuery

Hi Expert,

I am using a repeater in page. And JQuery will handle all the functions dynamically.
I sorted in the grid. And I input a special character in a textbox inside repeater. And I clicked submit button.
I found the special character in code-behind and assigned a hidden value isWrongSub=true.
In JQuery I got the hidden value
function X(a, b) {
    if ($('#isWrongSub').val() == "true")
       //I tried to stop herer using return false;
       //but not working properly.
       //rows resorted automatically. This is NOT what I want. I want to freeze here and remove the special character.
       //but it is resorted. I can't find the problem row.

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Miguel OzSoftware EngineerCommented:
Where is function X called? Which event(s)?
Best way to solve this issue:

Check that special character at client side itself using JavaScript on click of Submit button. If you found special character then do not proceed further and stop there.

Do not go to server side for just checking special character.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
jssong2000Author Commented:
I use javascript to remove special characters using keypress event
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.