List selectedItem inside GridItemEditor

Question

I have a List inside a GridItemEditor.  To make it reusable for many columns, I make the dataProvider and labelField variables, since they are different for each column. The labelField of the List typically matches the column.dataField .
[Bindable] public var dp:ArrayCollection;
[Bindable] public var lf:String;
<s:TextInput id="t"  prompt="filter as you type" change="t_changeHandler(event)"/>
<s:List id="l"   dataProvider="{dp}" labelField="{lf}">
How do I return the value of the labelField property in l.selectedItem?  Typically, I have a fixed property (e.g. list.selectedItem.firstName), but in this case I need it to return the value of labelField as it varies by column.
override public function get value():Object {
                                                                      return l.selectedItem[labelField]  ????; // don't know the syntax?
override public function save():Boolean
                                                  data[column.dataField] = value;
Thanks,
Don

Answer 1

Thank you.  Works great.  I'm just getting used to cases where you don't use the dot syntax when dealing with Objects and ArrayCollections.
Appreciate the help.
Don