[flexcoders] combobox value?

[markflex2007]

Hi,

I have a combobox like

<mx:ComboBox id="userSelect" dataProvider="{userList}" 
labelField="userName"/>

I have username and userID and I will send the userid to database.

which attribute in ComboBox I can use to save the userid value?

the userList is ArrayCollection and have username and userid.

Thanks

Mark