Re: [Wicket-user] Re: Howto generate additional inputs to existing ListView of inpu ts.. ..

[Johan Compagner]

if you want a empty row then just add a Empty object (new Person() or something like that)
in the model (list) of the listview
Then after submit that new Person() object is filled

Ajax is still in progress and moving ok.
We hope to have more really advanced things in the 1.2 version of wicket.

johan

On 10/3/05, Trieu, Danny <[EMAIL PROTECTED]> wrote:

Johan,

 

Thanks for reply.

 

What if I do this on the serverside. How would I do it in wicket to add empty row and render this to

The client? 

 

Thanks,

 

--danny

 

Ps. Johan, how far do you see Ajax is coming? And plus if you switch to Ajax in wicket, would their

Be much or portability issues?

 

From: Johan Compagner <[EMAIL PROTECTED]> Re: Howto generate additional inputs to existing ListView of inputs.. ..   2005-10-03 03:42

as i said in other threads. When you dynamically adding things on the client side Then you have to do this loading of that data completely by yourself in youre Form.onSubmit() method.  The wicket way (without ajax at them moment) you just have to go to the server there add a new record (new Person) so that the ListView makes an extra empty row and renders this to the client.    On 10/3/05, Trieu, Danny <[EMAIL PROTECTED]> wrote: > >  Hi all, > >  It's 3am in the morning and I still trying to do something that seems > simple… and yet impossible? > >  Ok, I have a list of Person(s) that needs to be display in a Form for > update and create. > >  For update, I was able to update the existing data just fine. > >  For create, my Form has a button, when click on it, it needs to create an > additional row with inputs for > > All of the Person attributes. > >  I first tried to use _javascript_ to create the new row with all the input > fields empty. I used the Wicket's path > > Patterns to generate these new input's name( with new index for this new > entry). And on the serverside, I > > Do as follow: > > · Created a new ListView that has populateItem(…) implemented. > > · Overrided newItem(…) and getListItemModel(…) so that newItem(…) returns > a new ListItem that associated > > To a new ListItemModel(I extended), return by the getListItemModel(…) that > I override. > > · The new ListItemModel I extended has onAttach(…) overrided with logic > that would add new and empty > > Person object to the existing List of Person, that get from my ListView. > getModelObject(…). > > Well this doesn't work. The page did create additional row of inputs for > the new person. But when I submit the Form, > > Nothing get update to the existing list and the page come back with just > the previous data in the table and my new > > Person input is gone and no where to be found. > >  My guess is, Wicket use the existing components in the page to get posted > data. And since my new entry inputs > > Created on the client never exist on the server. Therefore, wicket does > not know to go get it. > >  If this is right, then how do I overcome this default behavior? And if it > is impossible to add new inputs on the client > > Browser then How do I do it on the server? Meaning, how do I create the > new inputs entries on the server so that wicket > > Can generate new inputs entry, and client can enter data and submit it. > >  Thanks for any helps, > >  --danny > >  *"The essence of knowledge is, having it, to apply it; not having it, to > confess your ignorance." -Confucius* > >

 

"The essence of knowledge is, having it, to apply it;
not having it, to confess your ignorance." -Confucius