我使用一個簡單的XML文件填充我的datagrid的3列。最後一列應該是一個itemrenderer,基本上是一個Button。但是,該按鈕應該僅顯示在數據網格的第3列的某些行上,具體取決於來自XML文件的值,該值爲「true」或「false」。所以基本上我想將itemrenderer中按鈕的Visible屬性設置爲true或false。DataGrid ItemRenderer錯誤
Here is the whole application
<?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" pageTitle="Dynamic Data Grid">
<!-- <s:layout>
<s:VerticalLayout horizontalAlign="center"/>
</s:layout>-->
<fx:Declarations>
<s:ArrayList id="cccb_dp">
<fx:String>User1</fx:String>
<fx:String>User2</fx:String>
<fx:String>User3</fx:String>
</s:ArrayList>
<fx:XML id="tempXML" source="assets/fieldsXML.xml"/>
<s:XMLListCollection id="fieldsXMLList" source="{tempXML.worker}"/>
</fx:Declarations>
<s:layout>
<s:VerticalLayout/>
</s:layout>
<s:VGroup verticalAlign="middle" horizontalCenter="1" verticalCenter="1" horizontalAlign="center">
<s:HGroup horizontalAlign="center" verticalCenter="-221" width="580" height="158" x="75">
<s:Label text="CC" width="23" height="24" verticalAlign="middle" fontWeight="bold"/>
<s:DropDownList id="cc_cb" dataProvider="{cccb_dp}" width="175"/>
</s:HGroup>
<mx:DataGrid id="myDG" dataProvider="{fieldsXMLList}">
<mx:columns>
<mx:DataGridColumn headerText="Header1" dataField="@field_label"/>
<mx:DataGridColumn headerText="Header2" dataField="@field_value"/>
<mx:DataGridColumn headerText="Header3">
<mx:itemRenderer>
<fx:Component>
<s:Button click="onClick(event)" label="Click Me" dataChange="onDataChange(event)" >
<fx:Script>
<![CDATA[
import mx.controls.Alert;
private function onClick(evt:Event):void
{
Alert.show([email protected]_visibility);
}
private function onDataChange(evt:Event):void
{
[email protected]_visibility;
}
]]>
</fx:Script>
</s:Button>
</fx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
</mx:columns>
</mx:DataGrid>
</s:VGroup>
</s:Application>
The XML:
<worker_fields>
<worker id="1" field_label="Seller" field_value="5" field_visibility="false"/>
<worker id="1" field_label="Balance" field_value="100" field_visibility="true"/>
<worker id="1" field_label="Cash Owned" field_value="300" field_visibility="true"/>
<worker id="2" field_label="Seller" field_value="5" field_visibility="false"/>
<worker id="2" field_label="Balance" field_value="130" field_visibility="true"/>
<worker id="2" field_label="Cash Owned" field_value="132" field_visibility="false"/>
<worker id="2" field_label="Credits" field_value="131" field_visibility="true"/>
</worker_fields>
Any idea how to go around it.
Thanks you for the precious help.
綁定將失敗並顯示XMLList。如果您不使用'dataChange'方法,所有按鈕都將可見。 – RIAstar
使用數據。@ field_visibility刪除錯誤,但仍然無效。我和你的第二個建議完全一樣。無論field_visibility爲'true'還是'false',該列的每一行都顯示該按鈕 任何想法? – FlexyBoz
@RIAStar感謝您的澄清;我沒有太多處理XML。 – JeffryHouser