关于Flex查询信息并显示的问题？那个高手帮忙解答下谢谢了.

[SWQQ-]

这是配置文件的内容所有的信息都从这里取

<?xml version="1.0" encoding="utf-8"?>
<root>
    <command id="1" label="login" description=" login The HPUX System." section="Section One"/>
    <command id="2" label="exit"  description=" logoff The HPUX System." section="Section One"/>
    <command id="3" label="id"  description=" Display your user and group identifications." section="Section One"/>
    <command id="4" label="who"  description=" Identify other users logged on to the system." section="Section One"/>
    <command id="5" label="date"  description=" Display system date and time." section="Section One"/>
    <command id="6" label="passwd"  description=" Assign a password to your user account." section="Section One"/>
    <command id="7" label="echo"  description=" Display simple messages to your screen." section="Section One"/>
    <command id="8" label="banner"  description=" Coding & Unit Testing." section="Section One"/>
    <command id="9" label="clear"  description=" Clears terminal screen." section="Section One"/>
     
    <command id="10" label="pwd"  description=" Displays the directory name of your current location in the hierarchy." section="Section Two"/>
    <command id="11" label="ls"  description=" Sees what files and directories are under the current directory." section="Section Two"/>
    <command id="12" label="cd"  description=" Changes your location in the hierarchy to another directory." section="Section Two"/>
    <command id="13" label="find"  description=" Finds files." section="Section Two"/>
    <command id="14" label="mkdir"  description=" Creates a directory." section="Section Two"/>
    <command id="15" label="rmdir"  description=" Removes a directory." section="Section Two"/>
    <command id="16" label="ls"  description=" Look at the characteristics of a file." section="Section Two"/>
    <command id="17" label="cat"  description=" Look at the contents of a file." section="Section Two"/>
    <command id="18" label="more"  description=" Look at the contents of a file." section="Section Two"/>
    <command id="19" label="cp"  description=" Make a copy of a file" section="Section Two"/>
    <command id="20" label="mv"  description=" Change the name of a file or directory." section="Section Two"/>
    <command id="21" label="mv"  description=" Move a file to another directory." section="Section Two"/>
    <command id="22" label="ln"  description=" Create another name for a file." section="Section Two"/>
    <command id="23" label="rm"  description=" Remove a file." section="Section Two"/>
    <command id="24" label="ls(ll, ls –l)"  description=" Determine what access is granted on a file chmod Change access." section="Section Two"/>
    <command id="25" label="umask"  description=" Change default file access." section="Section Two"/>
    <command id="26" label="touch"  description=" Update timestamp on file." section="Section Two"/>
    <command id="27" label="chown"  description=" Change the owner of a file." section="Section Two"/>
    <command id="28" label="chgrp"  description=" Change the group of a file." section="Section Two"/>
    <command id="29" label="su"  description=" Switch your user identifier." section="Section Two"/>
    <command id="30" label="newgrp"  description=" Switch your group identifier." section="Section Two"/>
  
    <command id="31" label="ps [-efl]"  description=" Report process status." section="Section Three"/>
    <command id="32" label="Ctrl+Z"  description=" Putting jobs in Background/Foreground." section="Section Three"/>
    <command id="33" label="nohup"  description=" Makes a command immune to hangup." section="Section Three"/>
    <command id="34" label="nice[-N]"  description=" Runs aprocess at alower priority N is a number between 1 and 19." section="Section Three"/>
    <command id="35" label="kill[-s signal_name]PID [PID...]"  description=" sends a signal to specified processes." section="Section Three"/>

</root>

这是TitleWindows组建

<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="492" height="364" title="Command Reference" showCloseButton="true" close="PopUpManager.removePopUp(this);" color="#F1F8F9">

	<mx:Script> 

        <!--[CDATA[  
            private function init():void  

            {  

                var url:URLRequest = new URLRequest("command-info.xml");  

                var loader:URLLoader = new URLLoader();  

                loader.addEventListener(Event.COMPLETE,onComplete);  

                loader.load(url);  

            }  

            private function onComplete(event:Event):void{  

                var result:URLLoader = URLLoader(event.target);  

                datas = XML(result.data);  

            }  
                         
        ]]--> 

    </mx:Script> 

 <mx:Script>
         <![CDATA[
         
             import mx.collections.ICollectionView;
             import mx.events.ListEvent;
               
             /*
              * Point area through the contents of the drop-down menu start
              */
             private function tree_itemClick(evt:ListEvent):void {
             	
             	 //Define the point add Tree Event use come true contents of the drop-down menu start
                 var item:Object = Tree(evt.currentTarget).selectedItem;
                 
                 //According the condition judge the point content
                 if (treeXML.dataDescriptor.isBranch(item)) {
                 	
                     treeXML.expandItem(item, !treeXML.isItemOpen(item), true);
                 } 
             }
            
             /*
              * Request the node of number
              */
             private function tree_labelFunc(item:XML):String {
             	
                 var children:ICollectionView;
                 
                 var suffix:String = "";
                 
                 if (treeXML.dataDescriptor.isBranch(item)) {
                 	
                     children = treeXML.dataDescriptor.getChildren(item);
                     suffix = " (" + children.length + ")";
                 }
                 return item[treeXML.labelField] + suffix;
             }
         ]]>
     </mx:Script>
    
    <mx:Script>
    	<![CDATA[
    	
    		/*
    		 * Default show all node of contents
    		 */
    		private function initApp():void {
               for each(var item:XML in this.treeXML.dataProvider)
                   this.treeXML.expandChildrenOf(item,true);
     }
    	]]>
    </mx:Script>
    
    <mx:Script>
        <![CDATA[
        import mx.managers.PopUpManager;

            [Bindable]
            public var selectedNode:XML;

            // Event handler for the Tree control change event.
            public function treeChanged(event:Event):void {
                selectedNode=Tree(event.target).selectedItem as XML;
            }
        [Bindable]
        [Embed("images/skin/titlewindow/titleWindowBg.png")]
        public var VBoxBg:Class;
        [Bindable]
        [Embed("images/tree/icon/point.png")]
        public var point:Class;
        ]]>
        
    </mx:Script>
    
    
   <mx:XML id="dynamicTreeXML" source="assets/configfiles/commandTwo-info.xml"/>
	<mx:VBox x="30" y="10" height="284" width="432">
		<mx:Tile width="429" height="23">
			<mx:Label text="A  B  C  D  E  F  G  H  I  Z  K  L  M  N  O  P  Q  R  S  T  U  X  Y  Z" width="418" height="23" fontWeight="bold" fontSize="13" fontFamily="Georgia" color="#3291C3"/>
		</mx:Tile>
		<mx:Label text="Select Command" width="104" height="23" fontSize="12" color="#3291C3" fontWeight="bold"/>
		<mx:HBox width="423" height="226">
			<mx:Tree id="treeXML" change="treeChanged(event)" creationComplete="initApp()" dataProvider="{dynamicTreeXML}" labelField="@label" labelFunction="tree_labelFunc" itemClick="tree_itemClick(event)" rowCount="6" showRoot="false" width="200" height="224" backgroundColor="#E2F5FA" color="#3291C3"/>
			<mx:TextArea width="210" height="223" color="#3291C3" text="{selectedNode.@description}" />
		</mx:HBox>
	</mx:VBox>
	
</mx:TitleWindow>

我的问题是通过怎样的方式在点击 A B C D E F。。。。。。也就是定义的首字母时，在左边的Tree中显示XML定义的信息里相关字母开头的Command ？
A B C D 怎样定义才能是可点击的，本人新手很多都不懂，希望大家多多提意见 或者是用其他的方法实现这样的功能，多多指点。

[SWQQ-]

没有人能解答吗？

[xingjunli]

如(思路没做测试)：

[Bindable]
private var xmlValue:XMLListCollection;
private function queryXML(par:String):void
{
  xmlValue = dynamicTreeXML.command.(contains(@label,par))
}
  <mx:Tree id="treeXML" dataProvider="{xmlValue }" labelField="@label" />
..

[SWQQ-]

感谢你的解答，我试验了下 好像不行，也针对的修改了一些还是不行，能不能麻烦多费些心，帮我解决它，谢谢了。

[xingjunli]

ABCDEF。。。应该分开不同组件以响应查询事件
2、mx:Tree应该绑定一个查询结果：
xml查询如：dynamicTreeXML. command.(contains(@label,'A'))

[SWQQ-]

[Quote=引用 2 楼 xingjunli 的回复:]
ABCDEF。。。应该分开不同组件以响应查询事件
2、mx:Tree应该绑定一个查询结果：
xml查询如：dynamicTreeXML. command.(contains(@label,'A'))
[/Quote]

具体的绑定应该是怎么设置的？mx：Tree 具体查询结果绑定的？能帮忙详细的解释下可以不？