ajax cascadingdropdown

When I have added following line just above the Webservice class declaration, the Cascading Dropdown functionality is started working for me.


It's amazing. But soon I noticed some limitations with Cascading Dropdown. When i tried to populate large amount of data it again started throwing [Method Error 500] error. This error is not related to the number items in the drop down. I think this is related to amount of data being populated in the dropdown. The functionality works if I have limited data. But if the no of item/ size of item increase the problem starts.

Does anyone know solution to this problem? Your immediate help is much appreciated.
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.

In your web.config, locate the section

    <!-- add the following line.  The number indicates the max number of characters returned from web services -->
             <jsonSerialization maxJsonLength="50000000"></jsonSerialization>

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
devdeptAuthor Commented:
Accept Answer
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
.NET Programming

From novice to tech pro — start learning today.