Asp.Net+flash as3 文件上传实现进度条代码片段

UpFile.Fla (flash文件)

以下是代码片段：
       fileRefListener.onSelect = function (fileRefList:FileReferenceList):Void {
       uploadBtn.enabled = true;
       rePaintProBar("progressBar", 18.0, 50.0);
       var list:Array = fileRefList.fileList;
          var fileRef:FileReference;
       totalBytes = 0;
          for(var i:Number = 0; i < list.length; i++) {
              fileRef = list[i];
        totalBytes += fileRef.size;
       txtFilePath.text = fileRef.name;
          FileExt = fileRef.type;
          }
      }
      
      fileRefListener.onCancel = function (fileRef:FileReference):Void {
       uploadBtn.enabled = false;
      }
      
      fileRefListener.onOpen = function (fileRef:FileReference):Void { 
       txt_FilePath.label = fileRef.name;
      }
      
      fileRefListener.onProgress = function (fileRef:FileReference, bytesLoaded:Number, bytesTotal:Number):Void {
       progressBar.mode = "manual";
       var temp:Number = bytesLoaded - uploadedBytes2[fileRef.name]
       uploadedBytes2[fileRef.name] = bytesLoaded;
       uploadedBytes += temp;
       progressBar.setProgress(uploadedBytes, totalBytes);
       txtUploaded.text = GetSizeType(uploadedBytes);
       txtTotal.text = GetSizeType(totalBytes);
      
      }
      
      fileRefListener.onComplete = function (fileRef:FileReference):Void {
       filesCompleted++;
       if(filesCompleted == totalFiles)
        FinishedUpload();
      }
      
       
      fileRefList.addListener(fileRefListener);
      
      browseButn.clickHandler = function () {
       fileRefList.browse(allTypes);
      }
      
      uploadBtn.clickHandler = function () {
       var list:Array = fileRefList.fileList;
       var fileRef:FileReference;
       if(uploadBtn.label == "上传")
       {   
        browseBtn.enabled = false;
        uploadBtn.label = "取消";
        totalFiles = list.length;
        filesCompleted = 0;
        uploadedBytes = 0;
        uploadedBytes2 = [];
        txtUploadNum.text = "已上传：";
        txtFileTotal.text = "文件大小：";
        for(var i:Number = 0; i < list.length; i++) {
         fileRef = list[i];
         fileRef.addListener(fileRefListener);
         uploadedBytes2[fileRef.name] = 0;
         if(uploadPage != undefined)
          fileRef.upload(uploadPage);
        }
       }
       else
       {  
        for(var i:Number = 0; i < list.length; i++) {
         fileRef = list[i];
         fileRef.cancel();
        }
        uploadBtn.label = "上传";
        browseBtn.enabled = true;
       }
      }

 

UpLoadFile.aspx

以下是代码片段：
        string saveToFolder = "/UpFile/";
        HttpFileCollection uploadedFiles = Request.Files;
        string NewFileName = Session["UpLoadFileName"].ToString();
        string Path = Server.MapPath(saveToFolder);
        for (int i = 0; i < uploadedFiles.Count; i++)
        {
            HttpPostedFile F = uploadedFiles[i];
            if (uploadedFiles[i] != null && F.ContentLength > 0)
            {
                string newName = F.FileName.Substring(F.FileName.LastIndexOf("\") + 1);
                F.SaveAs(Path + "/" + NewFileName + F.FileName.Substring(F.FileName.LastIndexOf(".")));
            }
        }