flex4.5 DataGrid 列中添加Button,事件函数中获取外部的方法、属性。

 外部的方法和属性必须用public，内部列函数用
outerDocument 获得。 
			 看例子吧:                       //更新			public function updateData():void			{				_service = new RemotingConnection(_gatewayURL);				_service.call("RemotingService.PlanConfiguration.deletePlanConfigurationData",					new Responder(onUpdateDataResult,onFault),dgResult.selectedItem.id);			}			//删除			public function delectData():void			{				_service = new RemotingConnection(_gatewayURL);				_service.call("RemotingService.PlanConfiguration.deletePlanConfigurationData",					new Responder(onDeleteDataResult,onFault),					dgResult.selectedItem.id);				}	  1<s:DataGrid id="dgResult" width="100%" height="100%" dataProvider="{arr}"> 2                 <s:columns>
 3                     <s:ArrayList>                        
 4                         <s:GridColumn headerText="方案编号" dataField="id"  width="65"/>
 5                         <s:GridColumn headerText="方案名称" dataField="name"  width="65"/>
 6                         <s:GridColumn headerText="方案类型" dataField="type"  width="65"/>
 7                         <s:GridColumn headerText="标题" dataField="tittle"  width="38"/>
 8                         <s:GridColumn headerText="时间" dataField="date"  width="70"/>
 9                         <s:GridColumn headerText="地点" dataField="site"  width="38"/>
10                         <s:GridColumn headerText="任务描述" dataField="describe"  width="65"/>
11                         <s:GridColumn headerText="执行单位" dataField="execute_unit"  width="65"/>
12                         <s:GridColumn headerText="协作单位" dataField="assist_unit"  width="65"/>
13                         <s:GridColumn headerText="发送单位" dataField="send_unit"  width="65"/>
14                         <s:GridColumn headerText="媒体附件" dataField="accessory"  width="65"/>
15                         <s:GridColumn headerText="操作">
16                             <s:itemRenderer>
17                                 <fx:Component>
18                                     <s:GridItemRenderer>
19                                         <s:layout>
20                                             <s:HorizontalLayout verticalAlign="middle"  />
21                                         </s:layout>

                                         
23                                         <fx:Script>
24                                             <![CDATA[
25                                         
26                                                 protected function btnEide_clickHandler(event:MouseEvent):void
27                                                 {
28                                                     // TODO Auto-generated method stub
29                                                     if(outerDocument.dgResult.selectedIndex != -1)
30                                                     {
31                                                         outerDocument.updateData();
32                                                     }                                                    
33                                                 }
34                                                 
35                                                 protected function btnDelete_clickHandler(event:MouseEvent):void
36                                                 {
37                                                     // TODO Auto-generated method stub
38                                                     outerDocument.delectData();
39                                                 }
40                                                 
41                                                 protected function btnPreview_clickHandler(event:MouseEvent):void
42                                                 {
43                                                     // TODO Auto-generated method stub
44                                                     outerDocument.previewData();
45                                                 }
46                                                 
47                                             ]]>
48                                         </fx:Script>
49                                         
50                                         <s:Button id="btnEide" label="编辑" click="btnEide_clickHandler(event)" />
51                                         <s:Button id="btnDelete" label="删除" click="btnDelete_clickHandler(event)" />
52                                         <s:Button id="btnPreview" label="预览" click="btnPreview_clickHandler(event)" />
53                                     </s:GridItemRenderer>  
54                                 </fx:Component>
55                             </s:itemRenderer>
56                         </s:GridColumn>
57                     </s:ArrayList>                        
58                 </s:columns>
59             </s:DataGrid>