[flexcoders] Dynamically Set Controls to be Required

[gregariousgregmi]

I have several comboboxes that I want to set to be required based on 
a login id.  I have an array of objects; each object contains a 
string variable that is the label name of the combo box that I want 
to be required. The line that sets the styleName to required returns 
a "Error #1009: Cannot access a property or method of a null object 
reference." 
required is defined in the css file.

Any ideas?


private function getFormControlProperties_Result(evt:ResultEvent):void
{
        if( evt.result == null )
           return;
        tArray = evt.result as Array;
        for( var i:int=0; i<tArray.length; i++ ){
           if( tArray[i].IsRequired == 1 )
              (tArray[i].ControlName as Label).styleName="required"; 
        }
}