flex datagrid 中实现序号功能

 

 

<mx:DataGridColumn headerText="序号" width="70" minWidth="70">  
                <mx:itemRenderer>  
                    <mx:Component>  
                        <mx:Label text="{this.parentDocument.genrowno(data)}"/>  
                    </mx:Component>  
                </mx:itemRenderer>  
             </mx:DataGridColumn>

 

 public function genrowno(ob:Object):String {  
          ob.sID=String(alarm_rule_action_detail_dg.dataProvider.getItemIndex(ob)+1);
                return String(alarm_rule_action_detail_dg.dataProvider.getItemIndex(ob)+1);  
          }