JSF select one menu keeps giving me summary=Validation Error: Value is not

Question

Hi all,
I'm using five select menus in a JSP file.
the other four are populated whenever the first menu changes its value (ValueChange event).
after the menus are populated, i select a item in each menu and submit it.
but when i submit the form i get the following error:
E com.sun.faces.context.FacesContextImpl addMessage Adding Message[sourceId=form2:menu61,summary=Validation Error: Value is not valid)
[12/1/06 11:25:58:541 EST] 00000030 jsf           E com.sun.faces.context.FacesContextImpl addMessage Adding Message[sourceId=form2:menu5,summary=Validation Error: Value is not valid)
[12/1/06 11:25:58:557 EST] 00000030 jsf           E com.sun.faces.context.FacesContextImpl addMessage Adding Message[sourceId=form2:menu6,summary=Validation Error: Value is not valid)where menu61, menu5, menu6 are the menus on the form.
someone pls throw some light on this.
-Seshu

Answer 1

Hi,
Since you are using a request scoped bean things work like this:
1. You fetch your list, for example from a database, with a bean that is put in request scope.
2. You populate your select component on the jsp page.
3. You select an item in the select component and submits the form.
4. When the form is submitted the selected value has to be validated against the list it was chosen from. Since you retrieved the list from a bean in request scope the list isn't available when you submit the form and the getter for the list probably returns an empty list which gives you the validation error.
What you have to do is to get the list the item was selected from when submitting the form. This can be done in different ways. Either you keep your list in the session between the requests or you get the list from your data storage again. This is a horrible "feature" with JSF and from what I know it's impossible to turn this validation off.
/klejs