Dynamically filter element in ComboBoxItem

[Xandros]

Hi,
I have a form with ComboBoxItem that take data form local datasource with local valueMap.

I want fitler dynamically the record showed on ComboBoxItem.
I see this is possible overriding pickListCriteria function in ComboBoxItem item.

What i want to do is dinamically override pickListCriteria returning dynamic criteria (for example placing a ComboBoxItem in a form into a modal window and filtering ComboBoxItem depending on button that open this window, to limit user choice).

I try this:

messageWindowForm.getItem("type").pickListCriteria  = function(){
 return {id:1}
}

without success!

Can you give me some help, please?

Thanks.

[Isomorphic]

Incorrect usage, see the DataBound Dependent Selects examples.

[Xandros]

Thaks for the suggestionm, I see DataBound Dependent Selects, but this not match with my case.
In DataBound Dependent Selects the ComboBoxItem is coupled with other item/events in it's declaration, I need to modify behaviour of pickListCriteria at runtime to set criteria for ComboBoxItem.

[Isomorphic]

You're still confused. pickListCriteria is not a method, it's a property. getPickListFilterCriteria() is the method override point you're looking for.

[Xandros]

I change my implementation as you suggest:

    	messageWindowForm.getItem("type").getPickListFilterCriteria = function(){
    		var criteria = {id:"1"};    	
    		return criteria;
    	};
        messageWindowForm.getItem("type").fetchData();

but the criteria is not applied yet.
What wrong?

[Xandros]

Ok, now works:

messageWindowForm.getItem("type").getPickListFilterCriteria = function(){
    		var criteria = {id:["2"]};    	
    		return criteria;
    	};

Thanks!