sorry. forget to ask another question.
I have another menu (jscookmenu) component also plugged in the html page.
After rendering the multiple selection. the menu page can not displayed any
more. What might cause such problem?
The components for menu and multiselection in html look like below:
<form jwcid="@Form" listener="listener:formSubmit">
<table>
<tr>
<td valign="top">
#
</td>
<td valign="top">
<table>
<tr>
<td>
<select jwcid="[EMAIL
PROTECTED]" multiple="ognl:true"
validators="validators:required">
<option jwcid="@Option"
selected="ognl:selection[currentColorIndex]" label="ognl:currentColor"/>
</select>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
neo anderson wrote:
>
> i follow the following page -
> http://tapestry.apache.org/tapestry4.1/components/form/select.html.
> And now I can render the multi-elect item on the page with its index set
> to 0, 1, 2, 3 ...
>
> However I want the index value to be string. For example, I have a color
> list {"yellow", "green", "red"}, which will be displayed in the html but
> with its option value set to, say, {"notice", "open", "stop"}.
>
> or in html code as below:
>
> <select name="colorList" multiple>
> <option value="notice">yellow</option>
> <option value="open">green</option>
> <option value="stop">red</option>
> </select>
>
> I have tried to implement getCurrentColorIndex in the java code, but it
> fails with "Unable to update OGNL expression ".
>
> What should I do?
>
> Thanks in advice.
>
>
> 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">
>>
>> <option jwcid="@Option" selected="ognl:color.selected"
>> label="ognl:color.name"/>
>>
>> </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!
>>
>> _________________________________________________________________
>> Don?t just search. Find. Check out the new MSN Search!
>> http://search.msn.click-url.com/go/onm00200636ave/direct/01/
>>
>>
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>>
>>
>
>
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