我无法从XML响应中填充组合框。这是我收到的XML:
<distros>
<entry>
<distro>CentOS</distro>
<distro>Debian</distro>
<distro>Other</distro>
<distro>Sabayon</distro>
<distro>Ubuntu</distro>
<distro>VMware</distro>
<distro>Windows</distro>
</entry>
</distros>
可能是最基本的XML形式!
这是flex代码:
private function getDistros():void
{
httpReq = new HTTPService;
httpReq.url = 'http://myserver/xml.php';
httpReq.resultFormat = 'e4x';
httpReq.method = 'GET';
httpReq.addEventListener(ResultEvent.RESULT, popDistros);
httpReq.send( null );
}
private function popDistros(event:ResultEvent):void
{
if(event.result != "")
{
// Set the data to the XMLListCollection for lookup
myXmlCollection= new XMLListCollection(event.result.entry);
// Bind the ListCollection to the comboBox
Alert.show(myXmlCollection.toString());
distroCombo.dataProvider = myXmlCollection.toString();
}
}
和MXML:
<mx:ControlBar x="139" y="10" width="266" height="358" verticalAlign="top" horizontalAlign="left" direction="vertical">
<mx:ComboBox id="distroCombo" labelField="distro"></mx:ComboBox>
<mx:ComboBox id="imageCombo"></mx:ComboBox>
<mx:Button label="Download"/>
</mx:ControlBar>
在Alert中返回的XML很好但是comboBox不会填充,我现在尝试了这么多不同的方法,有人有任何建议吗?我是不是一直盯着它看太久了?
答案 0 :(得分:1)
如果结果(event.result)是XML,那么它应该像这样:(它与.distro相比最终与你的相比)
myXmlCollection = new XMLListCollection(event.result.entry.distro);
...这应该在myXmlCollection
中创建有效数据但是这一行也错了:
distroCombo.dataProvider = myXmlCollection.toString();
它只在字符串类型的dataProvider中创建一个项目(Just BTW:如果你使用了spark combobox,你会在这一行得到编译错误)。 只需使用它:
distroCombo.dataProvider = myXmlCollection;
并且还要注意,您可以在警报中看到正确的结果,但它没有说明数据的类型是否正确,因为警报evertyhing转换为字符串:)