AW: [flexcoders] Flex2 flash_proxy/Proxy getProperty and Binding

[Harald Dehn]

Hi,   you have to use namespace as well. Here is an example of a SortedList I use in testproject. You can enumerate the ListKeys with for … in and the Items with for each … in.   Harald   package Helper {       import flash.util.Proxy;       import flash.util.flash_proxy;             use namespace flash_proxy;             public class SortedList extends Proxy {             private var _Values:Object;             private var _Keys:Array;             private var _Sorted:Boolean;             private var _Count:int;                         public function Add(key:String, value:Object):void {                   if( _Values.hasOwnProperty(key) ) throw new Error("Key allready exists.");                   _Values[key] = value;                   _Count++;                   _Sorted = false;             }             public function Clear():void {                   _Values = new Object();                   _Sorted = false;                   _Count = 0;             }             public function ContainsKey(key:String):Boolean {                   return _Values.hasOwnProperty(key);             }             public function get Count():int {                   return _Count;             }             public function Item(keyindex:Object):Object {                   return this.getProperty(_GetKey(keyindex));             }             public function Key(index:int):String {                   if( index < 0 || index >= this.Count ) throw new RangeError();                   return this.Keys[index];             }             public function get Keys():Array {                   if( !_Sorted ) {                         _Keys = new Array();                         for(var _Key:String in _Values) {                              _Keys.push(_Key);                         }                                               _Keys.sort();                   }                   return _Keys;             }             public function Remove(keyindex:Object):void {                   var _Key:String = _GetKey(keyindex);                   if( !_Values.hasOwnProperty(_Key) ) _ThrowError();                   delete _Values[_Key];                   _Sorted = false;                   _Count--;             }                         override flash_proxy function getProperty(name:*):* {                   if( name is QName ) {                         return _Values[name];                   }                   else {                         var key:String = _GetKey(name);                         if( !_Values.hasOwnProperty(key) ) _ThrowError();                         return _Values[key];                   }             }             override flash_proxy function setProperty(name:*, value:*):void {                   if( name is QName ) {                         _Values[name] = value;                   }                   else {                         var key:String = _GetKey(name);                         if( !_Values.hasOwnProperty(key) ) _ThrowError();                         _Values[key] = value;                   }             }             override flash_proxy function nextNameIndex(index:int):int {                   if( index < _Count ) {                         return index + 1;                   }                   else {                         return 0;                   }             }             override flash_proxy function nextName(index:int):String {                   return this.Keys[index -1];             }             override flash_proxy function nextValue(index:int):* {                   return getProperty(this.Keys[index-1]);             }               //Private             private function _ThrowError():void {                   throw new Error("Item doesn't exists.");             }             private function _GetKey(keyindex:Object):String {                   if( isNaN(Number(keyindex)) ) {                         return (keyindex as String);                   }                   else {                         var _index:int = int(Number(keyindex));                         if( _index < 0 || _index >= this.Count ) throw new RangeError();                         return this.Keys[_index];                   }             }               // Constructor             public function SortedList() {                   _Values = new Object();                   _Sorted = false;                   _Count = 0;             }                 } } Von: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] Im Auftrag von Renaun Erickson Gesendet: Mittwoch, 15. März 2006 08:49 An: flexcoders@yahoogroups.com Betreff: [flexcoders] Flex2 flash_proxy/Proxy getProperty and Binding   The sample code is located below.  I am trying to find a way to bind dynamic attributes (when using Proxy class).  I can't get the dynamic properties to bind, any suggestions or help would be appreciated. Renaun Proxy Class: package {       import flash.util.flash_proxy;       import flash.util.Proxy;       dynamic public class SomeClass extends Proxy {             public var _dynamicAttributeArray:Array;             public function SomeClass() {                   _dynamicAttributeArray = new Array();             }                              flash_proxy override function getProperty( name : * ) : * {                   return _dynamicAttributeArray[ name ];             }                   flash_proxy override function setProperty(name:*, value:*):void {                   _dynamicAttributeArray[ name ] = value;             }       } } Now if I have: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.macromedia.com/2005/mxml" xmlns="*"       creationComplete="initApplication()">       <mx:VBox width="100%" height="100%">             <mx:TextArea width="100%" height="50%" id="output" text="{ SomeClass(someClass).newAttribute }"/>             <mx:Button label="Change" click="someClass.newAttribute = '' + new Date();"/>       </mx:VBox>       <mx:Script>             <![CDATA[                   import SomeClass ;             public var someClass:SomeClass;                               public function initApplication()                   {                       someClass = new SomeClass();                       someClass.newAttribute = "I am New";                       //output.text = someClass.newAttribute;                   }             ]]>       </mx:Script> </mx:Application> -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Computer software development Software design and development Macromedia flex Software development best practice YAHOO! 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