ItemRenderer for DataGrid

Question

Here's a nice problem
Please test the code below.
As you will see, it works fine! The scores (7) are presented neatly. That's because in the itemRenderer for column 2, I bind the text property to
data.item2.score.
BUT
In my application, I DON'T KNOW WHAT THIS PROPERTY WILL BE because the dataProvider is generated dynamically. The names of the properties are generated dynamically using a prefix ("item") and a suffix which is an id from the database. So the dataProvider could hold the props 'item325' and 'item23' and so on...
What I want to do is to store the name of the property in the labelField of the column (as I did in the example). The itemRenderer should now get its data using that labelField.
In my ItemRenderer which says now 'text="{data.item2.score}"' should be 'text="{data[referenceToLabelField].score}"'
Any Ideas?
thx;
d
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">
    <mx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            [Bindable]
            private var dp:ArrayCollection = new ArrayCollection();
            private function init():void
                var a:Array = new Array();
                for (var i:int = 0; i < 10; i++)
                    a.push({pupil: "Pupil " + i, item2: {score: 7}});
                dp.source = a;
        ]]>
    </mx:Script>
    <mx:DataGrid dataProvider="{dp}">
        <mx:columns>
            <mx:DataGridColumn headerText="Column 1" dataField="pupil" width="200"/>
            <mx:DataGridColumn headerText="Column 2" dataField="item2" width="200">
                <mx:itemRenderer>
                    <mx:Component>
                        <mx:Label text="{data.item2.score}" width="10"/>
                    </mx:Component>
                </mx:itemRenderer>
            </mx:DataGridColumn>
        </mx:columns>
    </mx:DataGrid>
</mx:Application>

Answer 1

The project I'm working on is a school test generator. I created a test generator. Let's say I create a test named "Final exam". In this test I link a student group and I add as much testItems as I want. Let's say I make 2 testItems named "Written result" and "Attendance during schoolyear". Now, my application will generate scores for each student and for each item.
We'll generate a dataGrid as:
                    Written result          Attendance during schoolyear
Pupil 1               7                                   5
Pupil 2               6                                   9
Pupil 3               8                                   2
In this simple example, my dataProvider could look like this:
{pupil: "Pupil 1", score1: 7, score2: 5},
{pupil: "Pupil 2", score1: 6, score2: 9},
{pupil: "Pupil 3", score1: 8, score2: 2}
Setting the labelField to 'score1' and 'score2' will work.
So far, so good! My problem however is that the scores are not just figures but Objects! Why? Because my system makes it possible to VIEW the scores in diffrent ways, such as figures, smileys, checkboxes etc. The diffrent columns in my grid will each have a diffrent itemRenderer. The itemRenderers will take properties from their dataObject to render the output. My dataProvider looks like:
{pupil: "Pupil 1", score1: {score: 7, foo: 'whatever'}, score2: {score: 5, foo: 'whatever'}},
{pupil: "Pupil 2", score1: {score: 6, foo: 'whatever'}, score2: {score: 9, foo: 'whatever'}},
{pupil: "Pupil 3", score1: {score: 8, foo: 'whatever'}, score2: {score: 2, foo: 'whatever'}}
Setting the labelField to 'score1' and 'score2' won't work!
The data property for the itemRenderer of column 2 should be
     {score: 7, foo: 'whatever'}
instead of
     {pupil: "Pupil 1", score1: {score: 7, foo: 'whatever'}, score2: {score: 5, foo: 'whatever'}}
Does that make things clearer?
Thx,
d