In the following, shouldn't you set direction="form" .
> <parameter name="selected" type="java.util.List"
> required="yes"
> direction="in"/>
Shing
--- David Ethell <[EMAIL PROTECTED]> wrote:
> Update on my problems. This is not a valid solution,
> but it does allow a
> single instance of my control to work on a page. I
> just added this to
> the end of my handleSubmission() method to force the
> selected list to be
> sent back to the page:
>
> IPage page = cycle.getPage();
> page.setProperty("list", selected);
>
> Of course, that's not generic. It requires a
> property called list on the
> page instead of just setting the object passed to
> the control. So the
> question is, why is my control not updating the
> selected list passed to
> it from the page? My .jwc has this for the selecter
> parameter:
>
> <parameter name="selected" type="java.util.List"
> required="yes"
> direction="in"/>
>
> The .page using it has this for the call to the
> component:
>
> <component id="selectSearchTable"
> type="MultiSelectTable">
> <binding name="model"
> expression="searchParametersSelectionModel"/>
> <binding name="selected"
> expression="list"/>
> </component>
>
> I'll keep plugging away trying to find out why the
> component doesn't
> update the variable from the page.
>
> David
>
> -----Original Message-----
> From: David Ethell [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, April 27, 2005 3:39 PM
> To: Tapestry users
> Subject: Problem retrieving object from component on
> submit - similar to
> Palette
>
> I have a multi select component similar in
> functionality to the Palette
> component, but with a very different presentation.
>
> I have everything working like I want it except for
> a problem retrieving
> the selected values. Just like Palette this
> component accepts a List
> called selected and I make sure to update the
> selected object on rewind,
> but my page doesn't seem to see the changes.
>
> Here is my renderComponent method:
> protected void renderComponent(IMarkupWriter
> writer, IRequestCycle
> cycle)
> {
> IForm form =
> Form.get(getPage().getRequestCycle());
>
> if (form == null)
> throw new ApplicationRuntimeException(
> "MultSelectTable component must be
> wrapped by a Form.",
> this,
> null,
> null);
>
> setForm(form);
>
> setName(form.getElementId(this));
>
> if (form.isRewinding())
> handleSubmission(cycle);
>
> super.renderComponent(writer, cycle);
> }
>
> Notice the handleSubmission code just like Palette.
> Here is the
> handleSubmission method:
> private void handleSubmission(IRequestCycle cycle)
> {
> RequestContext context =
> cycle.getRequestContext();
> String[] values =
> context.getParameters("select_array_id_" +
> getName());
>
> int count = Tapestry.size(values);
>
> if (count == 0)
> return;
>
> System.out.println("selected table values: " +
> values[0]);
>
> List selected = new ArrayList();
> IPropertySelectionModel model = getModel();
>
> //Transform the incoming "}}"-delimited string
> to an array using
> SPLIT
> String[] valueArray =
> StringUtils.split(values[0], "}}");
> for (int i = 0; i < valueArray.length; i++)
> {
> System.out.println("value " + i + ": " +
> valueArray[i]);
> String value = valueArray[i];
> Object option =
> model.translateValue(value);
>
> selected.add(option);
> }
>
> setSelected(selected);
> }
>
> Where setSelected is abstract and my .jwc has an IN
> parameter defined
> just like the Palette. This all seems to work just
> fine. My System.out
> calls show that the selected values are being
> submitted correctly. Now
> in my page java code I have:
>
> public void submit(IRequestCycle cycle) {
>
>
> System.out.println("start of submit");
> Visit visit = (Visit)getVisit();
>
> List list = getList();
> HashMap hash = new HashMap();
>
> //set all selected items recid and
> for(int i =0;i<list.size();i++){
> ParameterBean b = (ParameterBean) list.get(i);
>
> hash.put(""+b.getRecid(),"Y");
> System.out.println("selected field " + i
> + ": " +
> b.getName());
> }
> ...
> }
>
> This happens to use an implementation of
> IPropertySelectionModel that
> uses our custom ParameterBean. The list object is
> our List that we have
> passed to the component in the .page file. This
> exact same code worked
> just fine with Palette, but doesn't work with the
> new component. The
> list only has the preselected entries in it when it
> gets to the submit
> listener. My system.out calls show that
> handleSubmission from the
> component is finished before the start of the
> submit.
>
> Any ideas?
>
> David
>
> --------------------------------------
> David Ethell
> CTO, Vital Assets, Inc.
> Phone: 800.860.0607 Ex: 102
> Email: [EMAIL PROTECTED]
> 2020 Pennsylvania Avenue NW
> Suite 648
> Washington, DC 20006
> --------------------------------------
>
>
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