/// <summary>
/// 处理所有 HttpDownloadClients的 DownloadProgressChanged事件，并计算速度
/// </summary>
void client_DownloadProgressChanged(object sender, HttpDownloadClientProgressChangedEventArgs e)
{
lock (locker)
{
DownloadedSize += e.Size;
bufferCount++;
if (bufferCount == BufferCountPerNotification)
{
if (DownloadProgressChanged != null)
{
int speed = 0;
DateTime current = DateTime.Now;
TimeSpan interval = current - lastNotificationTime;
if (interval.TotalSeconds < 60)
{
speed = (int)Math.Floor((this.DownloadedSize -
this.lastNotificationDownloadedSize) / interval.TotalSeconds);
}
lastNotificationTime = current;
lastNotificationDownloadedSize = this.DownloadedSize;
var downloadProgressChangedEventArgs =
new MultiThreadedWebDownloaderProgressChangedEventArgs(
DownloadedSize, TotalSize, speed);
this.OnDownloadProgressChanged(downloadProgressChangedEventArgs);
}
//重新设置bufferCount.
bufferCount = 0;
}
}
}
/// <summary>
/// 引发 DownloadProgressChanged 事件.如果状态是Completed,则引发 DownloadCompleted事件。
/// </summary>
/// <param name="e"></param>
protected virtual void OnDownloadProgressChanged(
MultiThreadedWebDownloaderProgressChangedEventArgs e)
{
if (DownloadProgressChanged != null)
{
DownloadProgressChanged(this, e);
}
}
/// <summary>
/// 处理DownloadProgressChanged 事件。
/// </summary>
void DownloadProgressChanged(object sender, MultiThreadedWebDownloaderProgressChangedEventArgs e)
{
// 每隔一秒刷新一次主要信息 。
if (DateTime.Now > lastNotificationTime.AddSeconds(1))
{
lbSummary.Text = String.Format("接收: {0}KB 总共: {1}KB 速度: {2}KB/s 线程个数: {3}",
e.ReceivedSize / 1024, e.TotalSize / 1024, e.DownloadSpeed / 1024,
downloader.DownloadThreadsCount);
prgDownload.Value = (int)(e.ReceivedSize * 100 / e.TotalSize);
lastNotificationTime = DateTime.Now;
}
}
/// <summary>
/// 处理所有 HttpDownloadClients的 DownloadProgressChanged事件，并计算速度
/// </summary>
void client_DownloadProgressChanged(object sender, HttpDownloadClientProgressChangedEventArgs e)
{
lock (locker)
{
DownloadedSize += e.Size;
bufferCount++;
if (bufferCount == BufferCountPerNotification)
{
if (DownloadProgressChanged != null)
{
int speed = 0;
DateTime current = DateTime.Now;
TimeSpan interval = current - lastNotificationTime;
if (interval.TotalSeconds < 60)
{
speed = (int)Math.Floor((this.DownloadedSize -
this.lastNotificationDownloadedSize) / interval.TotalSeconds);
}
lastNotificationTime = current;
lastNotificationDownloadedSize = this.DownloadedSize;
var downloadProgressChangedEventArgs =
new MultiThreadedWebDownloaderProgressChangedEventArgs(
DownloadedSize, TotalSize, speed);
this.OnDownloadProgressChanged(downloadProgressChangedEventArgs);
}
//重新设置bufferCount.
bufferCount = 0;
}
}
}
/// <summary>
/// 引发 DownloadProgressChanged 事件.如果状态是Completed,则引发 DownloadCompleted事件。
/// </summary>
/// <param name="e"></param>
protected virtual void OnDownloadProgressChanged(
MultiThreadedWebDownloaderProgressChangedEventArgs e)
{
if (DownloadProgressChanged != null)
{
DownloadProgressChanged(this, e);
}
}
/// <summary>
/// 处理DownloadProgressChanged 事件。
/// </summary>
void DownloadProgressChanged(object sender, MultiThreadedWebDownloaderProgressChangedEventArgs e)
{
// 每隔一秒刷新一次主要信息 。
if (DateTime.Now > lastNotificationTime.AddSeconds(1))
{
lbSummary.Text = String.Format("接收: {0}KB 总共: {1}KB 速度: {2}KB/s 线程个数: {3}",
e.ReceivedSize / 1024, e.TotalSize / 1024, e.DownloadSpeed / 1024,
downloader.DownloadThreadsCount);
prgDownload.Value = (int)(e.ReceivedSize * 100 / e.TotalSize);
lastNotificationTime = DateTime.Now;
}
}