This week's giveaway is in the Android forum.
We're giving away four copies of Android Security Essentials Live Lessons and have Godfrey Nolan on-line!
See this thread for details.
The moose likes JSF and the fly likes Display a Popup instead of an error-message at conversionError Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Java » JSF
Bookmark "Display a Popup instead of an error-message at conversionError" Watch "Display a Popup instead of an error-message at conversionError" New topic
Author

Display a Popup instead of an error-message at conversionError

Michael Darsow
Greenhorn

Joined: Mar 11, 2012
Posts: 4
Hi there,

i am pretty new to JSF and i am trying to display a formular which has a date-field to be filled by the user.

In my JSF-Page i am iterating over a list objects A, which has 3 String fields and 1 Date field.



When the Submit-Button is pressed, a red error-message appears on the screen. Instead I would like to display a popup with an errormessage when the user presses the submit-Button and the date-conversion fails.

Is there a way to achieve this?
Thank you in advance
Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15961
    
  19

Welcome to the JavaRanch, Michael!

Straight JSF doesn't have any sort of support for popup windows or dialogs. The closest that you could get would be a link with a "target" attribute, but that wouldn't work when an input fails validation.

One of the prime virtues of JSF, however, is that it does provide better support for validation error handling than most platforms. Just not as popups.

Basically, out of the box you can either collect all the messages for the page and display them in one place using the "h:messages" element or you can tag the individual controls with messages. Like so:



BTW, avoid using Listeners when something simpler and more POJO will suffice. You don't need a "buttonAction" listener here, just a simple action method.

Among my pet peeves in JSF are use of HTML tags instead of JSF tags and use of ui:repeat for tabular data, so I've taken some liberties here.


Customer surveys are for companies who didn't pay proper attention to begin with.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Display a Popup instead of an error-message at conversionError
 
Similar Threads
ui:repeat and POST
No Required validation in xhtml + JSF
prevent auto submit
how to add a row dynamically in panel grid by clicking on command button using jsf
Problem with error messages not displaying