I've stumbled across a similar problem that I'm trying to find the Struts solution for.
I have a form which allows users to add a dynamic amount of rows (via a button that says "Add Row") and then submit the form with as little or many rows as they wish. Can a form bean be setup using collections instead of other object types? What is the proper way to handle a dynamic amount of the same data coming in to a Action? ~ Andrew Tomaka On 7/18/05, Rick Reumann <[EMAIL PROTECTED]> wrote: > Mike Elliott wrote the following on 7/18/2005 10:55 AM: > > > I've been beating my head against this all weekend to no avail. I > > understand how to do this in session scope, but don't know if it's > > even possible in request scope. > > > > As I understand things (which may be wrong), when the form is > > submitted (in request scope) a new form bean is created and populated > > with the values in the collection from the HTML form. But, of course, > > a newly created form won't know how many elements are in the form so > > it can't pre-populate the collection with beans to be filled in. > > Right? > > I'm still not totally clear where the problem is, since I'm not sure > what Session has to do with the initial setup of the form. It might help > if you let us know what the exact problem is when using request scope... > > 1) A problem when you submit the form and getting 'index' problems > showing up in the logs? > > 2) Is it making sure the nested structure is still there when validation > fails? > > I'm confused because you mention "But, of course, a newly created form > won't know how many elements are in the form so it can't pre-populate > the collection with beans to be filled in." This statement confused me > because you seem to be implying it works when it's in Session which > doesn't make sense since even with a Session scoped form you still need > to some initial population somewhere. > > Typically I feel you should always go to some sort of "setUp" action or > dispatch method BEFORE you ever forward to a form. Initially you can > often skip this step but later on there will be something you want to > 'do' before you get to the form anyway so I find it good practice to go > to a 'set up' first. > > For the two problems listed above the link Naill posted is good > http://wiki.apache.org/struts/StrutsCatalogLazyList (and I just recently > added to that link the way I like to do it). > > Let us know if you can't get it to work. I have to use Nested stuff all > the time, so I'll be able to help. > > -- > Rick > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
