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내가 임베디드 트리가있는 지점에 도달했습니다. 각 노드에는 체크 박스가 있습니다.Combobox NoClose 포함 체크 박스를 클릭하면 [FLEX]
아이디어는 드롭 다운이 닫히지 않고 탐색 상자를 체크하고 체크 할 수있게하는 것입니다. 체크 상자를 클릭 한 후이 드롭 다운을 열어 둘 수 없습니다!
XML이 PermissionTreeItemRendererV2.as> handleChkClick (evt)> this.itemXml. @ checked = { "0"또는 "1"}에서 업데이트되면 드롭 다운을 닫는 이벤트가 발생합니다.
이 성가신 이벤트를 사용하지 않도록 코드를 조정하는 방법을 알려주세요.
sample_combobox.mxml :
<?xml version="1.0"?>
<mx:Application xmlns:local="local.*"
xmlns:mx="http://www.adobe.com/2006/mxml"
creationComplete="loadXML()">
<mx:Script>
<![CDATA[
import mx.collections.XMLListCollection;
import mx.rpc.events.ResultEvent;
import mx.rpc.http.mxml.HTTPService;
public var xmlService:HTTPService = new HTTPService();
[Bindable]
public var xmlResult:XML;
[Bindable]
public var xmlList:XMLList;
[Bindable]
public var xmlTeams:XMLListCollection;
public function loadXML():void
{
xmlService.url = "mlb.xml"
xmlService.resultFormat = "e4x";
xmlService.addEventListener(ResultEvent.RESULT, resultHandler);
xmlService.send();
}
public function resultHandler(event:ResultEvent):void
{
xmlResult = XML(event.result);
xmlList = xmlResult.league;
xmlTeams = new XMLListCollection(xmlList);
}
]]>
</mx:Script>
<local:TreeComboBox
width="300"
id="combo"
labelField="@label" dataProvider="{xmlTeams}" />
</mx:Application>
TreeCombobox.mxml :
<?xml version="1.0" encoding="utf-8"?>
<local:ComboBoxNoClose xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:local="local.*">
<mx:Script>
<![CDATA[
import mx.events.FlexEvent;
[Bindable]
private var _label:String;
[Bindable]
public var treeSelectedItem:Object;
public function updateLabel(event:*):void
{
_label = event.currentTarget.selectedItem[this.labelField];
treeSelectedItem = event.currentTarget.selectedItem;
}
override protected function updateDisplayList(unscaledWidth:Number,
unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
if(dropdown && _label != null){
text = "";//_label;
}
}
]]>
</mx:Script>
<local:dropdownFactory>
<mx:Component>
<mx:Tree change="outerDocument.updateLabel(event)" height="500"
width="500"
itemRenderer="local.PermissionsTreeItemRendererV2"
folderClosedIcon="{null}"
folderOpenIcon="{null}"
defaultLeafIcon="{null}" />
</mx:Component>
</local:dropdownFactory>
</local:ComboBoxNoClose>
PermissionTreeItemRendererV2.as
// ActionScript file
package local
{
import flash.events.Event;
import flash.events.MouseEvent;
import mx.collections.ArrayCollection;
import mx.collections.ArrayList;
import mx.collections.ListCollectionView;
import mx.controls.CheckBox;
import mx.controls.treeClasses.TreeItemRenderer;
import mx.controls.treeClasses.TreeListData;
public class PermissionsTreeItemRendererV2 extends TreeItemRenderer{
public var chk:CheckBox;
public var itemXml:XML;
public function PermissionsTreeItemRendererV2(){
super();
mouseEnabled = false;
}
override public function set data(value:Object):void{
if(value != null){
super.data = value;
this.itemXml = XML(value);
if([email protected] == "1"){
this.chk.selected = true;
}else{
this.chk.selected = false;
}
}
}
override protected function createChildren():void{
super.createChildren();
chk = new CheckBox();
chk.addEventListener(MouseEvent.CLICK, handleChkClick);
addChild(chk);
}
override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void{
super.updateDisplayList(unscaledWidth,unscaledHeight);
if(super.data){
var tld:TreeListData = TreeListData(super.listData);
//In some cases you only want a checkbox to appear if an
//item is a leaf
//if so, then keep the following block uncommented,
//otherwise you can comment it out to display the checkbox
//for branch nodes
if(tld.hasChildren){
this.chk.visible = true;
}else{
//You HAVE to have the else case to set visible to true
//even though you'd think the default would be visible
//it's an issue with itemrenderers...
this.chk.visible = true;
}
if(chk.visible){
//if the checkbox is visible then
//reposition the controls to make room for checkbox
this.chk.x = super.label.x
super.label.x = this.chk.x + 17;
this.chk.y = super.label.y+8;
}
}
}
private function handleChkClick(evt:MouseEvent):void
{
if(this.chk.selected)
{
[email protected] = "1";
}
else
{
[email protected] = "0";
}
}
}
}
ComboboxNoClose.as : 트리를 채 웁니다
package local
{
import flash.events.Event;
import flash.events.MouseEvent;
import mx.controls.CheckBox;
import mx.controls.ComboBox;
import mx.events.DropdownEvent;
import mx.events.ListEvent;
public class ComboBoxNoClose extends ComboBox
{
public function ComboBoxNoClose()
{
super();
}
public function onOpen(event:Event):void
{
event.stopImmediatePropagation();
}
public override function close(trigger:Event = null):void
{
if (trigger != null)
{
super.close();
}
}
}
}
mlb.xml : 팝업의
<?xml version="1.0" encoding="utf-8"?>
<root>
<league label="American League">
<division label="West">
<team label="Los Angeles" />
<team label="Seattle" />
<team label="Oakland" />
<team label="Texas" />
</division>
<division label="Central">
<team label="Cleveland" />
<team label="Detroit" />
<team label="Minnesota" />
<team label="Chicago" />
<team label="Kansas City" />
</division>
<division label="East">
<team label="Boston" />
<team label="New York" />
<team label="Toronto" />
<team label="Baltimore" />
<team label="Tampa Bay" />
</division>
</league>
</root>