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From Adam Gordon <>
Subject Re: Struts form design question
Date Tue, 01 Aug 2006 16:50:39 GMT

That works as long as you can pre-populate your field before clicking 
the editAction button.  Recall that our "Add Field" button, via 
JavaScript, adds a new row to the table and by default the textfield is 
empty so the only way we would be able to retrieve the user's input 
would be to force them to click some sort of update button for that row 
after they enter some text in the text field - and I can tell you now, 
marketing will not go for that.  :-)

However, we can use the editAction to delete a row and just make an AJAX 
call to modify the bean array in session scope (using a DynaActionForm) 
on the server without modifying the database.


Lance wrote:
> I do this using 3 actions
> loadAction - called first time the page is loaded, populates the form with
> values from the db, the form has "session" scope.
> editAction - called by a click on the add or delete button, adds or removes
> a row from the form. Add and delete buttons should post to this action so
> that any field changes will be picked up.
> saveAction - commits the form to the db, called by a save button.
> This means that clicking on add and save requires a page refresh but it
> means struts will read input fields into your form automatically. Im sure
> you could go the ajax way and add / delete from your ActionForm without
> re-loading the page.
> -----Original Message-----
> From: Adam Gordon [] 
> Sent: 31 July 2006 21:02
> To: Struts Users Mailing List
> Subject: Struts form design question
> Hi folks.
> The more I think of this problem, the more I think that we will be unable to
> use only Struts for this particular situation.
> We have a table which we populate with a user's choice of custom
> registration fields (name, email, phone, company, etc...).  Each row in this
> table is essentially a button to remove the row, a text field to enter the
> name of the field, and a checkbox to indicate whether or not that particular
> field is required when a user registers.  At the bottom of the table is an
> "Add Field" button which will insert a new row in the table. 
> Right now, the "Add Field" and "Remove Row" buttons are implemented in
> JavaScript because we don't want to edit the database every time the user
> makes a change.  Additionally, we want the ability to "reset" the table back
> to what the user had originally (the user's defaults can change over time,
> and since they come from the database, this is why we don't want "live"
> editing).
> Initially creating the table isn't the problem, we can use DynaForms to
> correctly create the table, the problem is how/can we read the values (the
> rows of textfield/checkbox items) back when the user is finished editing
> using Struts?  I don't think we can use DynaForms because the user can
> change what was originally rendered...or am I misunderstanding DynaForms?
> Thanks.
> -Adam
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