How can I get the length of a remote file??

How can I get the length of a remote file??

• Bryce Beagley

  WebClient wc = new WebClient();

  Stream stm = wc.OpenRead(www.abc.com/abc.rar);

  Console.WriteLine("stm.length");

  This code segment didn't work and throwed an exception.

  
  
  

• Kjell Tangen

  UP!
  
  

• Rasmus Helwigh

  what was the exception We need as much details as possible :-)

  What type of method is "OpenRead" on the WebClient class

  I guess another way would be to use a WebRequest/WebResponse class to retrieve the file size but maybe overkill if functionality exists in the WebClient class

  
  
  

• DaveDB

  This worked for me
  
  private int GetFileSize(String url)
  {
  try
  {
  Uri Url = new Uri(url);
  
  // Create a 'HttpWebrequest' object with the specified Uri.
  HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(Url);
  
  // Send the 'HttpWebRequest' and wait for response.
  HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
  
  // Release resources of response object.
  myHttpWebResponse.Close();
  
  // return the content length og the file
  return (int)myHttpWebResponse.ContentLength;
  }
  catch (WebException e)
  {
  MessageBox.Show(String.Format("\r\nWebException thrown.The Reason for failure is : {0}", e.Status));
  return -1;
  }
  catch (Exception e)
  {
  MessageBox.Show(String.Format("\nThe following Exception was raised : {0}", e.Message));
  return -1;
  }
  }
  
  
  

• Kenster

  The Stream object returned by the WebClient.OpenRead() method doesn't support seeking and thus not the Length property. Download is all you can do. For example:
  
  WebClient wc = new WebClient();
  Stream stm = wc.OpenRead("http://www.google.com/index.html");
  byte[] buf = new byte[1024];
  int len = 0;
  int cnt = buf.Length;
  while (cnt == buf.Length) {
  cnt = stm.Read(buf, 0, cnt);
  len += cnt;
  }
  stm.Close();
  Console.WriteLine("{0}", len);
  
  
  
  
• How can I get the length of a remote file??