数据绑定 字符串组合

<input name="memberChk" type="checkbox">
											<xsl:attribute name="value"><xsl:value-of select="@id"/>+<xsl:value-of select="@PaperType"/>-<xsl:value-of select="@FileId"/></xsl:attribute>
											<xsl:attribute name="id">chk<xsl:number/></xsl:attribute>
											<label>
												<xsl:attribute name="id">lbl<xsl:number/></xsl:attribute>
												<xsl:attribute name="for">chk<xsl:number/></xsl:attribute>
												<xsl:number/>
											</label>
										</input>

其中 value的值是 id、PaperType、FileId三个属性组合的结果，在flex中使用数据绑定时，怎样把三个属性组合在一起？

	<mx:DataGrid id="recDataGrid" width="100%" height="100%" dataProvider="{papers}">						  <mx:columns>
	    <mx:DataGridColumn headerText="标题" dataField="id+PaperType-FileId" />					</mx:columns>
     </mx:DataGrid>

在HTTPService 传递参数时又该怎样写？

<s:HTTPService id="delReceivedService" url="../../oa/ReadOffice/Readeddel.do"					   result="delReceivedService_resultHandler(event)"
				 fault="delReceivedService_faultHandler(event)"   method="GET"  resultFormat="e4x">
<s:request xmlns="">
   <memberChk>{recDataGrid.selectedItem.id}+{recDataGrid.selectedItem.PaperType}-{recDataGrid.selectedItem.FileId}</memberChk>
				
			</s:request>
		</s:HTTPService>

评论

1 楼 godlewis 2011-06-09  

既然是e4x，怎么取属性用对象的方式？用@来取

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
		<fx:Script>
			<![CDATA[
				
				public function getTitle(item:Object, column:DataGridColumn) : String {
					var value:XML =item as XML;
					return value.@id+value.@PaperType+value.@FileId;
				}
			]]>
		</fx:Script>
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
		<fx:XMLList id="papers" xmlns="">
			<value id="xxx" PaperType="www" FileId="123"></value>
			<value id="xxx" PaperType="www" FileId="123"></value>
			<value id="xxx" PaperType="www" FileId="123"></value>
			<value id="xxx" PaperType="www" FileId="123"></value>
		</fx:XMLList>
	</fx:Declarations>
	
	
	<mx:DataGrid x="115" y="162" dataProvider="{papers}">
		<mx:columns>
			<mx:DataGridColumn headerText="列 1" dataField="@id"/>
			<mx:DataGridColumn headerText="列 2" dataField="@PaperType"/>
			<mx:DataGridColumn headerText="列 3" dataField="@FileId"/>
			<mx:DataGridColumn headerText="标题" labelFunction="getTitle"/>
		</mx:columns>
	</mx:DataGrid>
	<s:HTTPService id="delReceivedService" url="../../oa/ReadOffice/Readeddel.do"                       result="delReceivedService_resultHandler(event)"  
				   fault="delReceivedService_faultHandler(event)"   method="GET"  resultFormat="e4x">  
		<s:request xmlns="">  
			<memberChk>{recDataGrid.selectedItem.@id+recDataGrid.selectedItem.@PaperType +'-'+recDataGrid.selectedItem.@FileId}</memberChk>  
			
		</s:request>  
	</s:HTTPService> 
</s:Application>