网络连接重置后继续下载

Question

从url下载文件时，如果连接丢失并重置，则我的程序会抛出异常，如

  

“无法从传输连接中读取数据：连接   被关闭了“

这是我的代码。

System.Net.HttpWebRequest request = 
        (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);

System.Net.HttpWebResponse response = 
        (System.Net.HttpWebResponse)request.GetResponse();

WebClient client = new WebClient();

//Stream strRemote = client.OpenRead(url);
Stream strRemote = response.GetResponseStream();

FileStream strLocal = 
        new FileStream(sFileSavePath, FileMode.Create, FileAccess.Write, FileShare.None);

int iByteSize = 0;
byte[] byteBuffer = new byte[8192];

while (true)
{
    try
    {
        iByteSize = strRemote.Read(byteBuffer, 0, byteBuffer.Length);
        {
            //some code related to saving into file.                               
        }                         
    }
    catch (Exception ex) 
    {
        MessageBox.Show("The Message: " + ex.Message); 
    }
}

当网络继续时，我的代码完美运行。但是当我丢失网络连接并且连接重置后我的程序显示异常。我想在网络连接重置后继续下载过程。请帮忙处理这个情况。