示例#1
0
        // 上传进度改变时触发
        protected override void OnUploadProgressChanged(object sender, BeSl.Controls.File.Upload.UploadProgressChangedEventArgs args)
        {
            base.OnUploadProgressChanged(sender, args);

            progressBar.Value       = TotalUploadedSize;
            totalSizeTextBlock.Text = string.Format("{0} / {1}",
                                                    new ByteConverter().Convert(TotalUploadedSize, this.GetType(), null, null).ToString(),
                                                    new ByteConverter().Convert(TotalUploadingSize, this.GetType(), null, null).ToString());
        }
示例#2
0
        // 上传进度改变时触发
        protected virtual void OnUploadProgressChanged(object sender, BeSl.Controls.File.Upload.UploadProgressChangedEventArgs args)
        {
            TotalUploadedSize += args.BytesUploaded;

            double ByteProcessTime = 0;
            double EstimatedTime   = 0;

            try
            {
                TimeSpan timeSpan = DateTime.Now - m_startTime;
                ByteProcessTime        = TotalUploadedSize / timeSpan.TotalSeconds;
                EstimatedTime          = (TotalUploadingSize - TotalUploadedSize) / ByteProcessTime;
                timeSpan               = TimeSpan.FromSeconds(EstimatedTime);
                timeLeftTextBlock.Text = string.Format("{0:00}:{1:00}:{2:00}", timeSpan.Hours, timeSpan.Minutes, timeSpan.Seconds);
            }
            catch { }
        }
示例#3
0
        // 一次文件上传操作(由于服务器对每次请求的文件大小一般有限制,因此大文件上传时,根据ChunkSize进行分批上传)
        private void FileUpload_WriteCallback(IAsyncResult asynchronousResult)
        {
            HttpWebRequest webrequest = asynchronousResult.AsyncState as HttpWebRequest;
            // 结束操作
            Stream requestStream = webrequest.EndGetRequestStream(asynchronousResult);

            byte[] buffer    = new Byte[4096];
            int    bytesRead = 0;
            int    tempTotal = 0;

            Stream fileStream = ((m_resizeStream != null) ? (Stream)m_resizeStream : File.OpenRead());

            fileStream.Position = BytesUploaded;

            while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0 && tempTotal + bytesRead < ChunkSize && !m_cancel)
            {
                requestStream.Write(buffer, 0, bytesRead);
                requestStream.Flush();
                BytesUploaded += bytesRead;
                tempTotal     += bytesRead;

                if (UploadProgressChanged != null)
                {
                    int percent = (int)(((double)BytesUploaded / (double)FileLength) * 100);
                    UploadProgressChangedEventArgs args = new UploadProgressChangedEventArgs(percent, bytesRead, BytesUploaded, FileLength, m_file.Name);

                    this.Dispatcher.BeginInvoke(delegate()
                    {
                        UploadProgressChanged(this, args);
                    });
                }
            }

            // 只关闭文件流,不关闭图片调整流,一面第二次上传时再次对文件作调整
            if (m_resizeStream == null)
            {
                fileStream.Close();
            }

            requestStream.Close();

            webrequest.BeginGetResponse(new AsyncCallback(FileUpload_ReadCallback), webrequest);
            //webrequest.GetResponse
        }