请教一个文件传输的进度条

Question

程序写清楚一点：NetworkStream myStream= new NetworkStream(newSock);
byte[] fileBuffer = new Byte[filesize];
myStream.Read(fileBuffer,0,fileBuffer.Length);
FileStream savefileStream = new FileStream saveFileDialog.FileName,FileMode.OpenOrCreate);
savefileStream.Write(fileBuffer,0,fileBuffer.Length);

Answer 1

我这样写了一下，但不怎么行，请问有用新的线程或Timer的吗？
if(saveFileDialog.ShowDialog() == DialogResult.OK)
{
FileName=saveFileDialog.FileName;
if(FileName!= "")
{
int fbytes=Convert.ToInt32(ChatInfo[3]);
progressBar1.Maximum=fbytes;
progressBar1.Minimum=1;
progressBar1.Step=1;
panelProgress.Visible=true;
NetworkStream myStream= new NetworkStream(newSock);
// initializes and assigns the ReadBuffer with the
// length of the file
// Creates a new object for fileStream with File open mode
byte[] mbyte  = new Byte[fbytes];
int startmbyte = 0;
while(fbytes>0)
{
myStream.Read(mbyte,startmbyte,32);
startmbyte+=32;
fbytes-=32;
progressBar1.Value+=32;
}
FileStream fstrm = new FileStream(FileName,FileMode.OpenOrCreate,FileAccess.Write);
fstrm.Write(mbyte,0,startmbyte);
myStream.Close();
fstrm.Close();
progressBar1.Value=progressBar1.Maximum;
panelProgress.Visible=false;
}
}

Answer 2

实际上你应该异步读网络流然后
监视网络流的position旧可以了,

Answer 3

To:xiaha3(夏)   请问有异步读方面的实际例子吗？

Answer 4

ms-help://MS.VSCC/MS.MSDNVS.2052/cpguide/html/cpconinvokingwebservicesasynchronously.htm