[flexcoders] Assigning ItemRenderers in AS vs MXML

[Ethan Miller]

Greetings -

The following mxml works fine:

<mx:DataGridColumn
    id="peopleColumn"
    
headerText="{AdvisorModel.getInstance().selectedQuestionList.getItemAt(0).Label}"
 
    itemRenderer="Apps.Advisor.Shared.IR_People"/>

However this AS (part of a dynamic dataGrid creation) which attempts to do the 
same as the mxml above fails reporting that it  annot coerce "IR_People"  to 
mx.Core.IFactory:

   dgc = new DataGridColumn();      
   dgc.headerText = oColumnDef.headerText                            
   var ir:IR_People = new IR_People); 
   dgc.itemRenderer = ir;                                       

(the above is part of a function the rest of which is working fine).

Something special about creating itemRenderers in AS?

cheers, ethan