File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Spring and the fly likes List Binding -- form:checkboxes Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Java Interview Guide this week in the Jobs Discussion forum!
JavaRanch » Java Forums » Frameworks » Spring
Bookmark "List Binding -- form:checkboxes" Watch "List Binding -- form:checkboxes" New topic

List Binding -- form:checkboxes

Dave Okey

Joined: May 16, 2011
Posts: 3
Hi all. Thanks in advance for any help..this really has me stumped.

I have the following object association in my model:


My PropertyEditor:

My JSP form:

The form renders correctly. That is, the checkbox list of Contracts is generated and the correct ones are "checked." The problem is when I submit I get:

The custom property editor seems to be doing its job and there are no null/empty strings being passed to my property editor.

If the form and controller makes the conversion when viewing the form, why is it having trouble when processing the form? What am I missing here?

Dave Okey

Joined: May 16, 2011
Posts: 3
I guess a fresh set of eyes first thing in the morning does the trick again.

My custom property editor had no clue what to do with the id value I was passing in since it couldn't access my DAO/service. So, I had to change the constructor:

Then, modified the initBinder in my controller:

Maybe this will help someone else.
I agree. Here's the link:
subject: List Binding -- form:checkboxes
It's not a secret anymore!