Thanks Norman, 

You were right. I modified the onInternalEvent() method of
AbstractEventMixin.java and it worked. 
I copied both methods below
Thanks again for your help

OLD
*******************     
Object onInternalEvent()
        {
                String input = request.getParameter(PARAM_NAME);

                final Holder valueHolder = Holder.create();

                ComponentEventCallback callback = new ComponentEventCallback()
                {
                        public boolean handleResult(Object result)
                        {
                                valueHolder.put(result);
                                return true;
                        }
                };

                resources.triggerEvent(getEventName(), new Object[]{input}, 
callback);

                return valueHolder.get();
        }
*******************

NEW
*******************    
Object onInternalEvent(List<String> context)
    {
        String input = request.getParameter(PARAM_NAME);

        final Holder valueHolder = Holder.create();

        ComponentEventCallback callback = new ComponentEventCallback()
        {
            public boolean handleResult(Object result)
            {
                valueHolder.put(result);
                return true;
            }
        };
        Object[] callbackMethodParameters = new Object[context.size() + 1];
        callbackMethodParameters[0] = input;
        for(int i=1; i< context.size(); i++)
        {
            callbackMethodParameters[i] = context.get(i-1);
        }
        
        resources.triggerEvent(getEventName(), callbackMethodParameters, 
callback);

        return valueHolder.get();
    }
*******************



Norman Franke wrote:
> 
> I've had a lot of issues with CK and contexts, in my case  
> InPlaceCheckbox. I basically copied the source and wrote my own. In  
> this case, the afterRender didn't use the context when creating the  
> link, this makes the context empty when the onAction fires. And CK's  
> AjaxCheckbox doesn't use a context at all, apparently. Perhaps the  
> same thing is happening with the OnEvent?
> 
> I've been meaning to submit some bugs on this, but have been so busy.  
> Another one, if anyone cares, is that the DateTimePicker fails  
> (JavaScript exception) if it's hidden (in a hidden DIV or  
> FormFragment.) This failure causes JavaScript processing to stop on  
> the page causing all sorts of problems.
> 
> Norman Franke
> Answering Service for Directors, Inc.
> www.myasd.com
> 
> 
> 
> On Aug 12, 2009, at 11:21 AM, ppetrou wrote:
> 
>>
>> I am using the example documented here
>> http://www.chenillekit.org/chenillekit-tapestry/ref/org/chenillekit/tapestry/core/mixins/OnEvent.html
>> and I can't get the context optional parameter to work.
>>
>> The relevant code is as follows
>> *******************
>> <input t:id="code" t:type="TextField" translate="string"  
>> validate="required"
>>                                                      t:mixins="autocomplete, 
>> ck/OnEvent"
>>                                      event="change"
>> onCompleteCallback="onTextFieldCompleteFunction"
>>                                      value="auxInvoicedItemUI?.code"
>> context="${myContext}"/>
>> *******************
>> public Object onChangeEvent(List<String> values){}
>> *******************
>>    public List<String> getMyContext()
>>    {
>>      List<String> list = new ArrayList<String>();
>>      list.add("code101XXX");
>>      list.add(String.valueOf(0));
>>      list.add("codeXXX");
>>      return list;    
>>    }
>> *******************
>> The problem is that the values parameter of onChangeEvent(List<String>
>> values)
>> always returns one value which is the value of
>> value="auxInvoicedItemUI?.code"
>>
>> Is there anyway I can have the values parameter also containing the  
>> values
>> returned by getMyContext() method?
>>
>> Petros
>>
>>
>>
>> -- 
>> View this message in context:
>> http://n2.nabble.com/ck-OnEvent-with-Context-tp3431473p3431473.html
>> Sent from the Tapestry Users mailing list archive at Nabble.com.
>>
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>>
> 
> 
> 

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