Network Class Library Team (System.Net) - All Comments

re: End-to-end connectivity with NAT traversal

Thank you — Thu, 11 Oct 2012 22:25:08 GMT

Yes, great that MS and the .NET team have enabled simple direct connection of clients across the internet.

This has saved us a load of trouble with a remote control project.

Well done.

re: New Picture Hunt Silverlight Socket Sample

John — Mon, 09 May 2011 03:07:51 GMT

Thanks so much for this - it was extremely helpful, and helped me solve a problem I'd been struggling with for days!

Just wondering, any chance you (or someone else) could post something about hosting a socket service on Windows Azure? This seems to have special requirements, so it would be good to get some ideas on how to do this.

Thanks again!

re: How to troubleshoot your System.Net code

Mariya Atanasova [NCL] — Tue, 08 Mar 2011 21:02:28 GMT

// Get the object used to communicate with the server.

string filename = "";

FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftppath /filename);

//request.Method = WebRequestMethods.Ftp.UploadFile;

request.Method = WebRequestMethods.Ftp.AppendFile;

// This example assumes the FTP site uses anonymous logon.

//request.Credentials = new NetworkCredential(username,password);

request.UsePassive = true;

request.UseBinary = true;

request.KeepAlive = false;

// Copy the contents of the file to the request stream.

;

string path = HTTPDatasheetPath()/filename;

WebRequest req = WebRequest.Create(path);

WebResponse response = req.GetResponse();

Stream _FileStream = response.GetResponseStream();

byte[] _Buffer = null;

// attach filestream to binary reader

System.IO.BinaryReader _BinaryReader = new System.IO.BinaryReader(_FileStream);

// get total byte length of the file

//long _TotalBytes = _FileStream.Read(_Buffer, 0, _Buffer.Length); //new System.IO.FileInfo(path).Length;

long _TotalBytes = (long)response.ContentLength;

// read entire file into buffer

_Buffer = _BinaryReader.ReadBytes((Int32)_TotalBytes);

// close file reader

request.ContentLength = _Buffer.Length;

Stream requestStream = request.GetRequestStream();

requestStream.Write(_Buffer, 0, _Buffer.Length);

requestStream.Close();

re: Silverlight 4 Socket Policy Changes

Aaron Oneal — Tue, 14 Sep 2010 00:28:13 GMT

Josh: Sorry, not currently, but elevated listener support is a feature we're tracking.

Mai: That depends not on Silverlight but on whether the ISPs your clients use route multicast data. Most providers today do not route it outside of their own networks (across the Internet). Keep in mind too that if users are behind a corporate firewall then UDP is not likely to get through. Typical video conferencing applications that connect everywhere have to rely on a variety of fallback protocols that make trade offs between connectivity and performance.

re: Silverlight 4 Socket Policy Changes

Mai — Mon, 13 Sep 2010 15:10:25 GMT

plz i want to know if i this notes help me to make a video confernce application using udp multicast over the intenet !!!on local lan it works perfectly i want to know if i could do it over the intenet!! plz i want the answer!!!!

re: System.Uri FAQ

Tratcher — Thu, 15 Jul 2010 20:54:37 GMT

Zak, this is a known issue. See the following Connect entry for more information:

connect.microsoft.com/.../system-uri-incorrectly-strips-trailing-dots

re: System.Uri FAQ

zak — Thu, 15 Jul 2010 08:51:43 GMT

zak

Can I prevent implicit Uri cleanup? For instance, this:

WebRequest wr = HttpWebRequest.Create("http://foo.com/path path./uri.uri");

Console.WriteLine(wr.RequestUri);

results in

http://foo.com/path path/uri.uri

The dot just before the slash has been removed. In my opinion this is a bug, and doesn't conform to the behavior indicated by the msdn URI class documentation. Is there a workaround?

re: What's new in System.Net.Mail

Aaron Oneal — Mon, 07 Jun 2010 17:31:32 GMT

QUIT should be sent when Dispose is called. Can you confirm whether you called Dispose?

re: What's new in System.Net.Mail

Chris Wright — Mon, 07 Jun 2010 10:41:33 GMT

I commented on this bog post last year asking about if the SmtpClient in .NET 4.0 would send the QUIT command when it is done sending a mail message and you said that in the final release of .NET 4.0 this should be sorted. I tested it the other day though and it looks like it still does not send QUIT... :(

re: System.Uri FAQ

Tratcher — Sat, 08 May 2010 14:24:40 GMT

Remove the "file:///" before creating the Uri. As shown in question 9 above, implicit file paths allow # in the path, explicit file paths do not.

Uri test = new Uri("file:///d:/folder1/folder#two/folder3");

Console.WriteLine(test.LocalPath); // d:\folder1\folder

test = new Uri("d:/folder1/folder#two/folder3");

Console.WriteLine(test.LocalPath); // d:\folder1\folder#two\folder3