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selectManyListBox not binding to an arraylist

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I have a :selectManyListBox that is defined like this:

So as soon as a user clicks a reason, the criteriaSearchBean gets populated with the items selected, and the form is submitted.

The only problem is that this does not happen. The flowAdjustmentAction.criteriaSearchBean.reasonList does not get populated and is null. My syntax seems ok, because I am binding text boxes to other values in the criteriaSearchBean as well, and they dont get set to null.

The selectItems consist of an Object that is composed of an Integer , and a String. The array "reasonList" is an Integer array. There are no validation errors reported.
Anyone know what is up?

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I think you have to bind a selectmanyListBox to a Map and not a List. a name/Value pairing ..Try that
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