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From "Derek Hohls" <DHo...@csir.co.za>
Subject Re: [REPOST] Setting multi-value widget values for dynamically createdforms
Date Tue, 03 Jun 2008 13:48:58 GMT
Robin

How would you create the array programmtically
ie. values array needs to be populated via data
values sourced elsewhere ( and typically available
in a string variable) rather than from a static list.

Thanks
Derek

>>> On 2008/06/03 at 03:32, in message <F6853221-59B6-4F99-BED0-8B9712C8A188@robinwyles.com>,
Robin Wyles <rob@robinwyles.com> wrote:
Hi Derek,

As far as I can remember you just need to set the multi-value widget  
value to a simple array, and I don't think you should initialise the  
array with 10 values if you are only setting 1.

Something like this maybe:

var values = ["option1", "option2"]; // these are the values to pre- 
select
fwidget.setValue(values);

Cheers,

Robin



On 3 Jun 2008, at 08:13, Derek Hohls wrote:

> I am reposting in the hope that someone can find a
> few moments to look at this - I'm sure I am missing
> something simple, but cannot see what it is...
>
>>>> On 2008/05/21 at 12:55, in message  
>>>> <48341BB8.5CE9.00D4.0@csir.co.za>, "Derek Hohls"  
>>>> <DHohls@csir.co.za> wrote:
> I have a dynamically created form which I then access from flowscript
>
>   var qit = newForm.getWidget().getChildren();
>    if (qit != null) {
>    while ( qit.hasNext() ) {
>        fwidget = qit.next() ;
>       ...
>
> to get each widget.  I now need to pre-select some values for
> all of the multi-value widgets.  (Note that the widget below has a
> datatype of string).
>
> Approach 1 is what I *think* is correct; Approach 2 I know is
> wrong but it does confirm that the widget I am accessing is
> a MultiValueField.
>
> Any ideas as to how to make this work properly?
>
> Thanks
> Derek
>
> (Side note:  if I omit this step, the rest of the form displays
> as expected, and values for other widget types are set OK.)
>
>
> Approach 1:
>
> var values = java.lang.reflect.Array.newInstance(java.lang.String,  
> 10);
> values[0] = "Option 1";
> fwidget.setValue(values); //NB also tried fwidget.setValues(values);
>
> Result 1:
>
> java.lang.NullPointerException
> at org.apache.cocoon.forms.formmodel.MultiValueField.setValues 
> (MultiValueField.java:190)
> at org.apache.cocoon.forms.formmodel.MultiValueField.setValue 
> (MultiValueField.java:180)
> ...
>
>
> Approach 2:
>
> fwidget.setValue("Option 1");
>
> Result 2:
>
> java.lang.RuntimeException: Cannot set value of field "q-25--6"  
> with an object of type java.lang.String
> at org.apache.cocoon.forms.formmodel.MultiValueField.setValue 
> (MultiValueField.java:182)
> ...




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