Flash / Flex / ActionScript/Development/FileReference

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Downloading Files

   <source lang="java">

package{

 import flash.display.Sprite;
 import flash.net.*;  
 public class Main extends Sprite{
   public function Main(){
       var fileReference:FileReference = new FileReference(  );
       var urlRequest:URLRequest = new URLRequest("example.txt");
       fileReference.download(urlRequest);
   }
 }

}

       </source>
   
  


File Upload

   <source lang="java">

package { import flash.display.Sprite; import flash.text.TextField; import flash.events.Event; import flash.events.MouseEvent; import flash.events.IOErrorEvent; import flash.events.ProgressEvent; import flash.events.SecurityErrorEvent; import flash.net.FileReference; import flash.net.URLRequest; public class Main extends Sprite {

   private var _browse:TextField = new TextField();
   private var _upload:TextField = new TextField();
   private var _fileReference:FileReference = new FileReference();
   public function Main() {
       _browse.htmlText = "click to browse file";
       _browse.addEventListener(MouseEvent.CLICK, browseHandler);
       addChild(_browse);
       _upload.htmlText = "click to upload file";
       _upload.addEventListener(MouseEvent.CLICK, uploadHandler);
       _upload.x = 200;
       addChild(_upload);
       _fileReference.addEventListener(Event.SELECT, selectHandler);
       _fileReference.addEventListener(Event.CANCEL, cancelHandler);
       _fileReference.addEventListener(ProgressEvent.PROGRESS, progressHandler);
       _fileReference.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
       _fileReference.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityHandler);
       _fileReference.addEventListener(Event.ruPLETE, completeHandler);
   }
   private function browseHandler(event:MouseEvent):void {
       _fileReference.browse();
   }
   private function selectHandler(event:Event):void {
       trace("Selected File");
       trace("\nName: "+ _fileReference.name);
       trace("\nSize: "+ _fileReference.size);
       trace("\nCreated On: "+ _fileReference.creationDate);
       trace("\nModified On: "+ _fileReference.modificationDate);
       _upload.visible = true;
   }
   private function cancelHandler(event:Event):void {
       trace("Canceled");
   }
   private function uploadHandler(event:MouseEvent):void {
       _fileReference.upload(new URLRequest("simpleFileUpload.php"));
  }
   private function progressHandler(event:ProgressEvent):void {
       trace("file uploading\noprogress (bytes): "+ event.bytesLoaded + "/ "+ event.bytesTotal);
   }
   private function ioErrorHandler(event:IOErrorEvent):void {
       trace("an IO error occurred");
   }
   private function securityHandler(event:SecurityErrorEvent):void {
       trace("a security error occurred");
   }
   private function completeHandler(event:Event):void {
       trace("the file has uploaded");
   }

} }

       </source>
   
  


Listener to select and Cancel event from FileReference

   <source lang="java">

package { import flash.display.Sprite; import flash.text.TextField; import flash.events.Event; import flash.events.MouseEvent; import flash.net.FileReference;

   public class Main extends Sprite {
       private var _browse:TextField = new TextField();
       private var _fileReference:FileReference= new FileReference();
       public function Main() {
           _browse.htmlText = "click to browse files";
           _browse.addEventListener(MouseEvent.CLICK, clickHandler);
           addChild(_browse);
           _fileReference.addEventListener(Event.SELECT, selectHandler);
           _fileReference.addEventListener(Event.CANCEL, cancelHandler);
       }
       private function clickHandler(event:MouseEvent):void {
           _fileReference.browse();
       }
       private function selectHandler(event:Event):void {
           trace("Selected File");
       }
       private function cancelHandler(event:Event):void {
           trace("Canceled");
       }
   }

}

       </source>
   
  


Retrieving File Properties

   <source lang="java">

package {

   import flash.display.Sprite;
   import flash.text.TextField;
   import flash.events.Event;
   import flash.events.MouseEvent;
   import flash.net.FileReference;
   public class Main extends Sprite {
       private var _browse:TextField = new TextField();
       private var _fileReference:FileReference = new FileReference();
       public function Files() {
           _browse.htmlText = "click to browse files";
           _browse.addEventListener(MouseEvent.CLICK, clickHandler);
           addChild(_browse);
           _fileReference.addEventListener(Event.SELECT, selectHandler);
           _fileReference.addEventListener(Event.CANCEL, cancelHandler);
       }
       private function clickHandler(event:MouseEvent):void {
           _fileReference.browse();
       }
       private function selectHandler(event:Event):void {
           trace("Selected File");
           trace("\nName: "+ _fileReference.name);
           trace("\nSize: "+ _fileReference.size);
           trace("\nCreated On: "+ _fileReference.creationDate);
           trace("\nModified On: "+ _fileReference.modificationDate);
       }
       private function cancelHandler(event:Event):void {
           trace("Canceled");
       }
   }

}

       </source>
   
  


Uploading Files

   <source lang="java">

package{

 import flash.display.Sprite;
 import flash.net.*;  
 public class Main extends Sprite{
   public function Main(){
       
       var fileReference:FileReference = new FileReference(  );
 
       var urlRequest:URLRequest = new URLRequest("uploadScript.cgi");
       fileReference.upload(urlRequest);
       fileReference.upload(urlRequest, "UploadFile");
   }
 }

}

       </source>
   
  


uses a FileReferenceList and displays the details of each file that was selected

   <source lang="java">

package {

   import flash.display.Sprite;
   import flash.text.TextField;
   import flash.events.Event;
   import flash.events.MouseEvent;
   import flash.net.FileReference;
   import flash.net.FileReferenceList;
   public class Main extends Sprite {
       private var _browse:TextField = new TextField();
       private var _fileReferenceList:FileReferenceList;
       public function Main() {
           _browse.htmlText = "click to browse files";
           _browse.addEventListener(MouseEvent.CLICK, clickHandler);
           addChild(_browse);
           _fileReferenceList = new FileReferenceList();
           _fileReferenceList.addEventListener(Event.SELECT, selectHandler);
           _fileReferenceList.addEventListener(Event.CANCEL, cancelHandler);
       }
       private function clickHandler(event:MouseEvent):void {
            _fileReferenceList.browse();
       }
       private function selectHandler(event:Event):void {
           _output.text = "Selected Files";
           var file:FileReference;
           for(var i:Number = 0; i < _fileReferenceList.fileList.length; i++) {
               file = _fileReferenceList.fileList[i];
               trace("\nName: "+ file.name);
               trace("\nSize: "+ file.size);
               trace("\nCreated On: "+ file.creationDate);
               trace("\nModified On: "+ file.modificationDate);
               trace("\n----------------------------------");
           }
       }
       private function cancelHandler(event:Event):void {
           trace("Canceled");
       }
   }

}

       </source>