Flex 文本框的输入下拉提示
作者：
在很多时候我们要实现一个输入，显示提示并且可以从提示选择的功能，这是一种基于ComboBox 的变相实现，从服务器上动态获取
复制代码 代码如下:
<?xml version="1.0" encoding="utf-8"?>
<mx:FormItem xmlns:mx="http://www.adobe.com/2006/mxml" label="" required="true" width="305" fontWeight="bold" height="28" horizontalAlign="right" textAlign="center" fontStyle="normal">
<mx:Script>
<!--[CDATA[
import mx.managers.PopUpManager;
import mx.controls.Text;
import mx.rpc.events.ResultEvent;
import Scripts.ToolHelper;
//public var _win:PortWindow=new PortWindow();
[Bindable]
private var PortName:Text=new Text();
private function DropPorts_KeyDown(event:KeyboardEvent):void
{
if(this.DropPorts.editable==false)return;
this.DropPorts.close();
if(event.keyCode==Keyboard.ENTER)
{
this.DropPorts.prompt=this.DropPorts.text;
if(this.DropPorts.text.length<2)return;
this.HttpPort.cancel();
this.HttpPort.url="your url here";
this.HttpPort.addEventListener(ResultEvent.RESULT,HttpPort_result)
this.HttpPort.send();
}
else
{
}
}
private function HttpPort_result(event:ResultEvent):void
{
this.DropPorts.open();
}
]]-->
</mx:Script>
<mx:HTTPService id="HttpPort" method="GET" />
<mx:ComboBox id="DropPorts" keyDown="DropPorts_KeyDown(event);"
labelField="Name"
dataProvider="{HttpPort.lastResult.CityOcean.Port}" width="170" editable="true" textAlign="left"></mx:ComboBox>
<mx:Text id="txtPortID" visible="false" height="0" width="0" text="{DropPorts.selectedItem.ID}" />
</mx:FormItem>