Subject: RE: dynamic alteration of multiple entry select box content with javascript :
empty values upon submission
From: Simon Kirk <[EMAIL PROTECTED]>
===
Ah, you're right - I think I'm missing a vital part of my setup - the
function to select the stuff in the right hand boxes! What a foolish
schoolboy error. Thanks very much.
S
Etienne, Ingo (Goetzfried AG) wrote:
> You have to select all the options before submit like this:
>
>
> function activateOptions(field){
> for(i=0;i<field.options.length;i++){
> field.options[i].selected=true;
> }
> }
>
>
> hth
> Ingo
>
> -----Original Message-----
> From: Struts Newsgroup [mailto:[EMAIL PROTECTED]]
> Sent: Mittwoch, 27. M�rz 2002 18:25
> To: [EMAIL PROTECTED]
> Subject: dynamic alteration of multiple entry select box content with
> javascript : empty values upon submission
>
>
> Subject: dynamic alteration of multiple entry select box content with
> javascript : empty values upon submission
> From: Simon Kirk <[EMAIL PROTECTED]>
> ===
> Hello.
>
> I have an html page with two select boxes configured to allow multiple
> selection in each. The one on the left contains options that are
> available, the one on the right contains options that are selected from
> those available. I've got a javascript method suite that will transfer
> selected options from the box on the left to the box on the right
> dynamically. I know it works with normal html form submission as I've used
> it many times in the past. Now however I'm trying to get it to work with
> struts.
>
> The first problem I came across was populating the select boxes. Not
> normally a problem, but the form bean I had configured to accept the data
> from the html page complained about various problems. Finally I got this
> nailed. Here's an example of the html:
>
> <table cellspacing="0" cellpadding="0" border="0">
> <tr>
> <td align="center">Available options</td>
> <td align="center"> </td>
> <td align="center">Selected options/td>
> </tr>
> <tr>
> <td align="center">
> <html:select property="allOptions" size="5" multiple="multiple">
> <html:options collection="options" property="value"
> labelProperty="label"/>
> </html:select>
> </td>
> <td align="center">
> <input type="button" name="addoption" value=" >> "
> onclick="moveSelectedOptions('fooForm','allOptions','selectedOptions')">
> <br><br>
> <input type="button" name="deloption" value=" << "
> onclick="moveSelectedOptions('fooForm','selectedOptions','allOptions')">
> </td>
> <td align="center">
> <html:select property="selectedOptions" size="5" multiple="multiple">
> <html:options property="options" labelProperty="optionLabels"/>
> </html:select>
> </td>
> </tr>
> </table>
>
> (please excuse any shonky indentation :)
>
> I won't paste the javascript functions up here as they're pretty long
> winded.
>
> The top select box gets its options from a bean containing a collection of
> LabelValue beans. The bottom select box gets it options from a collection
> contained in the form bean, which is populated from the database with an
> Action before the form is rendered.
>
> Now, if you click one of the two buttons labelled >> or << the options
> move across into the relative box as expected. But when I submit the form
> I am getting nothing at all in the form bean for either the property
> "allOptions" or "selectedOptions". Nothing at all, not a null value, just
> nothing. This is independant of the type that you set that field to in the
> form bean class you make - struts isn't doing anything clever like turning
> the multiple selection into a Vector on the fly for you.
>
> The selected options should come through as a comma seperated list of IDs.
>
>
> If anybody has any idea where to go I would be very helpful, as reading
> through the mailing list archive and checking google hasn't really given
> me any useful information. Is there anywhere I can check every value being
> gleaned out of the form by the controller servlet? Printing the query
> string out in the action class that the html page forwards off to doesn't
> help, it's empty too.
>
> Regards,
> Simon
>
--
Simon Kirk
perception|be.developer(java)
t. +44 (0) 20 7689 1200
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