package { import mx.controls.Label; import mx.controls.dataGridClasses.*; public class CustomComp extends Label { override public function set data(value:Object):void { if(value != null) { super.data = value; if(value[DataGridListData(listData).dataField] < 10) { setStyle("color", 0xFF0000); } else { setStyle("color", 0x000000); } } } } }