NetworkStream.Write异步问题(NetworkStream.Write asynchronous issue)

 我在C＃中写入NetworkStream时遇到问题。 从MSDN我读到： 
 
 
 
 Write方法将一直阻塞，直到发送请求的字节数或抛出SocketException 
 
 
 好吧 - 就我而言，它的行为就像一个异步方法。 线程未被阻止。 
 
 这是一个代码示例，稍微启发一下情况： 
 
TcpClient tcpcl = new TcpClient("192.168.1.128", 1337);
NetworkStream netst = tcpcl.GetStream();
byte[] will_send = File.ReadAllBytes(@"large_file_120_MB.mp4");
Console.WriteLine("Starting transmission...");
netst.Write(will_send, 0, will_send.Length);
Console.WriteLine("File has been sent !");
(... later instructions ...)
 
 执行1秒后控制台的结果： 
 
 开始传输...... 
 
 文件已发送！ 
 
 第二条消息立即显示。 后来的指令正在执行中。 
 
 同时服务器仍然接收文件，并在其一侧一切正常。 它变得更好 - 如果我杀了发送程序，在传输过程中，接收将不会停止。 Degugger清楚地表明应用已完全结束。 然而，在完全停止接收之前，仍然会传输更多的兆字节。 
 
 所以我的问题 - 有没有办法阻止主线程，直到Write方法完成？ 

I have a problem with writing to a NetworkStream in C#. From MSDN i read:
 
 
 
The Write method blocks until the requested number of bytes is sent or a SocketException is thrown
 
 
Well - in my case, it behaves like an asynchronous method. Thread is not being blocked.
 
Here is a code sample, to enlighten situation a bit:
 
TcpClient tcpcl = new TcpClient("192.168.1.128", 1337);
NetworkStream netst = tcpcl.GetStream();
byte[] will_send = File.ReadAllBytes(@"large_file_120_MB.mp4");
Console.WriteLine("Starting transmission...");
netst.Write(will_send, 0, will_send.Length);
Console.WriteLine("File has been sent !");
(... later instructions ...)
 
Result from console after 1 second of execution:
 
Starting transmission...
 
File has been sent !
 
Second message shows immediately. Later instructions are being executed.
 
Meanwhile server still receives the file and on its side everything works well. It gets better - if i kill sending program, during transmission, receiving won't stop. Degugger shows clearly that app has ended entirely. However few more megabytes will still be transmitted, until receiving stops completely.
 
So my question - is there a way to block main thread, until Write method is finished ?

原文：https://stackoverflow.com/questions/14839245