From: Robert Zeigler <[EMAIL PROTECTED]>
Reply-To: "Tapestry users" <[email protected]>
To: Tapestry users <[email protected]>
Subject: Re: Multiple Select
Date: Thu, 14 Jul 2005 09:54:06 -0500
Well, the tassel component still uses the IPropertySelectionModel
interface.
Robert
Dan wrote:
> I think the Tassel multiple select looks good for my app logic right
> now. However, I m interested in looking at the
> ListPropertySelectionModel u ve written. I might get away with tassels
> component this time, but if something comes up thats is better if
> implemented via the propertyselection model, then i wont ve to be
> searching for an howto example :)
>
> thanks!
>
>> From: Robert Zeigler <[EMAIL PROTECTED]>
>> Reply-To: "Tapestry users" <[email protected]>
>> To: Tapestry users <[email protected]>
>> Subject: Re: Multiple Select
>> Date: Thu, 14 Jul 2005 07:59:23 -0500
>>
>> To be honest, I don't use the select component. :) I use
>> PropertySelection, SelectMultiple, contrib:MultiplePropertySelection,
or
>> Palette, depending on my need.
>> Then I don't have to worry about the details. :)
>> I'd suggest taking the time to understand the PropertySelection model,
>> because it will save you a lot of time and coding in the future.
>> I wrote a "ListPropertySelectionModel", if you're interested.
>> The items in the list have to implement a "NamedListItem" (single
>> "getItemName method), but once they do, you can just do
>> return new ListPropertySelectionModel(mylist);
>> Somebody else on here wrote something similar, using reflection instead
>> of interfaces, so you can just specify the model as a bean. The model
>> had a "label" property, or some such, that was used to determine, by
>> reflection, the method to be called to grab the object label.
>>
>> Robert
>>
>> Dan wrote:
>> > Rob,
>> >
>> > Thanks for the quick reply and the palette sample.
>> > I think i m avoiding using palette cuz i cant fig out an easy way to
>> > convert my java.util.List of composite objects (or watever u call
>> > em...the ones with objects inside objects) to a
>> IPropertySelectionModel.
>> > I'll take a look at tassel. good ref! thx
>> > i m curious though to learn more about the select component with
>> > multiple=true. So if the select component displayed a collection of
>> > objects, what would be a way (in the form listener) to get hold of
the
>> > selected objects?
>> > as i mentioned b4, i iterate through all the colln objects for
>> > isSelected() to be true, but looks like setSelected() is not turning
>> the
>> > flag to true...or maybe i m missing something?
>> >
>> > thanks again!
>> >
>> >
>> >
>> >
>> >> From: Robert Zeigler <[EMAIL PROTECTED]>
>> >> Reply-To: "Tapestry users" <[email protected]>
>> >> To: Tapestry users <[email protected]>
>> >> Subject: Re: Multiple Select
>> >> Date: Wed, 13 Jul 2005 16:58:32 -0500
>> >>
>> >> Try the select multiple component in tassel?
>> >> Otherwise, the contrib:palette works well, too.
>> >> Using it is really about the same as using PropertySelection.
>> >> The only difference is that you're passing a (modifiable) list
instead
>> >> of a single object in.
>> >>
>> >> Here's an example...
>> >>
>> >> <select jwcid="@contrib:Palette" model="ognl:coursesModel"
>> >> selected="ognl:selectedCourses"
>> >> availableTitleBlock="ognl:components.unenrolled"
>> >> selectedTitleBlock="ognl:components.enrolled"/>
>> >>
>> >> <span jwcid="[EMAIL PROTECTED]">
>> >> Unenrolled
>> >> </span>
>> >> <span jwcid="[EMAIL PROTECTED]">
>> >> Enrolled
>> >> </span>
>> >>
>> >> Robert
>> >>
>> >> Dan wrote:
>> >> > Hi,
>> >> >
>> >> > I am newbie to tapestry. I am having problems getting the selected
>> >> > values from a MULTIPLE select.
>> >> >
>> >> >> From googling the net and reading the docs, the method i
>> approached to
>> >> >> get
>> >> >
>> >> > the selected value from a SINGLE select list(dropwdown) is by
>> iterating
>> >> > over the collection being rendered and check if isSelected() is
>> true.
>> >> >
>> >> > example:
>> >> >
>> >> > Page spec:
>> >> >
>> >> > <select jwcid="@Select">
>> >> > <span jwcid="@Foreach" source="ognl:colorList"
value="ognl:color">
>> >> > <option jwcid="@Option" selected="ognl:color.selected"
>> >> > label="ognl:color.name"/>
>> >> > </span>
>> >> > </select>
>> >> >
>> >> > Java code:
>> >> >
>> >> > public Color getCurrentColor(){
>> >> > List l = getColorList();
>> >> > Color p;
>> >> > for (int i=0;i<l.size();i++){
>> >> > p = (Color)l.get(i);
>> >> > if (p.isSelected())
>> >> > return p;
>> >> > }
>> >> > return null;
>> >> > }
>> >> >
>> >> > I try to do similar thing with mulitple select, ie return a List
of
>> >> > objects whose isSelected() == true. But this doesnt seem to work.
>> >> >
>> >> > Could someone please guide as to how do they retrieve the selected
>> >> > objects from the multiple select?
>> >> >
>> >> > Also are there any contrib:palette examples out there? The book
>> >> > doesnt...neither did googling help.
>> >> >
>> >> > Thanks a bunch!
>> >> >
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