How to get rid of 'undefined' is null or not an object error?

Posted on 2008-10-08
Medium Priority
Last Modified: 2008-10-08
I currently have a page with 2 radio buttons to determine if the user is a returning customer or a new customer.  When the page loads it displays the radio buttons with the returning customer selected.  Below it is a login control that is contained in a separate user control.  If the user wishes to then login the page works fine but if they try to select the "new customer" radio button it does nothing and comes up with the following error:  'undefined' is null or not an object.  What should happen when the radio button is clicked is that the login control should be hidden and panel containing the new user fields should appear.
Question by:ciphron
LVL 22

Accepted Solution

prairiedog earned 2000 total points
ID: 22669684
It seems that you use JavaScript to find the login control and hide it if user selects "new customer". Check your JavaScript to make sure it indeed finds the control before accessing any property/style of the control.
LVL 26

Expert Comment

by:Anurag Thakur
ID: 22670178
can we have a look at your javascript code and the server side code from where you configure your javascript events

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

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.

Join & Write a Comment

A quick way to get a menu to work on our website, is using the Menu control and assign it to a web.sitemap using SiteMapDataSource. Example of web.sitemap file: (CODE) Sample code to add to the page menu: (CODE) Running the application, we wi…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
Hi, this video explains a free download that you can incorporate into your Access databases, or use stand-alone for contact management. Contacts -- Names, Addresses, Phone Numbers, eMail Addresses, Websites, Lists, Projects, Notes, Attachments…
Free Data Recovery software is an advanced solution from Kernel Tools to recover data and files such as documents, emails, database, media and pictures, etc. It supports recovery from physical & logical drive after a hard disk crash, accidental/inte…
Suggested Courses

627 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question