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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