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f:ajax to update h:selectOneMenu

Carlos Jorge Tavares Ferreira
Greenhorn

Joined: Dec 10, 2007
Posts: 17
Hi,

I'm trying to use an ajax event to update the values of a selectOneMenu.

With some workaround I was able to update the values (where can I see a good example on how to do this?),
but when I submit the form I'm getting a validation error on the component (javax.faces.component.UISelectOne.INVALID).

I'm doing this the wrong way, no doubt about it, it shouldn't be so complex:









What can I do to improve the code?

Kind regards,

Carlos Ferreira
Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 16019
    
  20

It's required that whatever value you have in the target value of a Select control must be in the SelectItems collection. If you change the SelectItems and the old selected value isn't in the new SelectItems, you need to reset the selected value to blank, null, or an appropriate pre-selection (that is, something that's in the new SelectItems list).


Customer surveys are for companies who didn't pay proper attention to begin with.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: f:ajax to update h:selectOneMenu