System.net.sockets Codes?
Mar 11, 2011Do you all have any updated websites that provides tutorials about the system.net.sockets namespace?
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Event Type Clr20r3 P3 4a5c12c0 System.net.sockets.socket Exception And Application Crash On Some System While Running Well On Others
Aug 3, 2009Event type clr20r3 p3 4a5c12c0 system.net.sockets.socket Exception and Application crash on some system. while running well on others. i go thorugh many forms and search a lot on google but not able to resolve the issue.
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System.Net.Sockets.Socket?
Feb 23, 2011I have a chat program using System.Net.Sockets.Socket that works perfectly over LAN.My question is - will this same program work over the net with little or no modification and if so do i provide the client with the IP of my machine or of my router and use port forwardin
View 1 RepliesVS 2005 System.Net.Sockets - FTP?
Nov 9, 2009I'm using System.Net.Sockets namespace for connecting to an ftp server. If a user has to login to a firewall first though, I'm not too sure what to do. The following is what I have working for logging into an ftp server without a firewall. (The Else statement) Do you know what I might add to the if statement? In the method where this conditional is, I am passing a firewall username and password.
m_tcpClient = New TcpClient
' Try to connect to ftp site
' If using firewall, login to it first then issue another command to log in to actual
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.net - 'TcpListener' Is Ambiguous In The Namespace 'System.Net.Sockets'?
Feb 21, 2012I got 11 errors in my VB program. All the errors look similar: X is ambiguous in the namespace Y
Error line: Imports System.Net.Sockets
Imports System.Text
Module Module1
Sub Main()
Dim serverSocket As New TcpListener(System.Net.IPAddress.Parse("192.168.1.100"), 8888)
.net - Retrieving Data After Using System.Net.Sockets SendFile?
Jun 8, 2012I'm coding a simple TCP client/server in VB.NET to transfer files of all sizes. I decided to use System.Net.Sockets's command SendFile to transfer the bytes through the socket.
On the receiving side, my code to retrieve the bytes works fairly well, but occasionally the transfer randomly stops. I figured out that by putting a small sleep delay between retrieving the next block of data makes the transfers 100% stable.My code to retrieve the data (until there is no data available) is simplified as this:
While newSocket.Available > 0
Threading.Thread.Sleep(100)
newSocket.ReceiveFrom(data, Remote)
End While
I really hate using that sleep delay and figure there must be a proper method/function to retrieve data from SendFile?
System.Net.Sockets Namespace - Use For A Chat Client?
May 31, 2009How would I use this for a chat client? I'm not sure where to even start and the internet is helping me find much about it.
View 4 RepliesSystem.Net.Sockets.Socket.BeginReceive And StateObject?
Sep 15, 2009The MSDN Documentation in question can be found here:[URL].. It offers the following code snippet example:
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Yahoo Login Via System.Net.Sockets Namespace?
Nov 3, 2008The problem is yahoo changed there login URL Structure. I have placed a peice of the code below.
Dim LoginPacket As String
LoginPacket = "GET http://login.yahoo.com/config?&login=" & txtLEmail.Text & "&passwd=" & strPass.Trim & " HTTP/1.0" & vbCrLf
LoginPacket = LoginPacket & "Accept: */*" & vbCrLf
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Determine If System.Net.Sockets.Socket Has Outgoing Data Not Read?
Sep 18, 2009Is there a way to determine if a System.Net.Sockets.Socket has sent data that has not been received/read by a specified remote endpoint with a connectionless protocol?It never hurts to try.
View 1 RepliesVS 2010 System Still Log In Even Deleted The Codes For Logging In?
Oct 1, 2010Here because even though I deleted the codes for logging in or make the condition wrong so that i will not log in.. still it logs-in to the system.
Dim username As String
Dim password As String
username = cmbUserName.Text
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Source Codes For A Restaurant Management System Project?
Nov 4, 2009and Send me some codings for a restaurant management system project using any programming language preferably VB6,VB.NET,PHP&MYSQL,HTML with Javascripts[i][color=#000099][size=3][font=Times New Roman]
View 2 RepliesApplication To Run In More Than One System / Share Common Database Exampls Or Some Codes
Mar 14, 2011i saw more applications can run in more than one systems and accessing a common database whenever update a data from one computer thats reflects in another eg a product is select by one system in a shop it wont showed by another system in the same local network.how to develop that kind of apps what kind of applications they are .please explain about that concept or give some ebook references.give me a simple vb application code in vb.net like above mentioned.[code]
View 7 Replies2005 - Discard The Contents Of A System.Net.Sockets.Socket Send Buffer Using TheSocket.IOControl(IOControlCode.Flush
Jun 10, 2012I'm attempting to discard the contents of a System.Net.Sockets.Socket send buffer using theSocket.IOControl(IOControlCode.Flush, .... Does anybody know whether VB.NET supports this command? I've tried supplying 'Nothing' and 'Nothing' for both required parameters, also empty and populated byte arrays in combination with 'Nothing' for both required parameters, but I consistently get an 'Invalid argument' exception. I've tried a web search for an answer, but the only mention I've found was a question asked about 8 years ago, with still no answer.
View 1 RepliesForms :: Experts Modify UPDATE Codes According To INSERT Codes Style
Dec 25, 2009Dear Experts modify UPDATE codes according to INSERT codes Style.
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I need update codes as there are insert codes
Exception Found - Cannot Access A Disposed Object. Object Name:'System.Net.Sockets.NetworkStream'
Dec 31, 2009Occasionally I encountered this exception message while trying to download file from a server using System.Net.FtpWebRequest and System.Net.FtpWebResponse Object.
Download a file.ftpRequest_DL.Method = WebRequestMethods.Ftp.DownloadFile get the response object
Dim ftpResponse_DL As FtpWebResponse = CType(ftpRequest_DL.GetResponse, FtpWebResponse)
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Reading XML Over Sockets
Feb 17, 2010I am writing an application which involves reading xml over socket. The messages arrive at socket asynchronously. How can I ensure that data is received in form of complete xml elements, validate received data and which classes will be helpful for me in accomplishing my goal.
View 1 RepliesUsing PTP Or NTP Protocol With Sockets?
May 21, 2012Can i implement PTP (precision time protocol) or NTP (simple network timing) with sockets?
If so, how can i use them to send small packages (4 to 33 bytes) with the smallest delay possible?
P.S. I would prefer to know more about PTP, I've heard that it has smaller delay.
.net - Working Of Tcpclient Sockets In .net?
Jun 2, 2011I have an application in vb.net which will connect with an hardware device and test its functionality. The hardware device basically spits out data continuosly through Ethernet. That is it recieves some data via com ports and spits out the processed data via ethernet.So my application does both. Thats pretty much the entire app.My problem is i am using tcpclient sockets. Now when i connect a tcpclient to the device using
tcpclient.open(ip,port);
Immediately the device sends some data which comes and get stored in the clientsocket. Then i send a command to it ,only then i read the data from the clientsocket using
tcpclient.getstream().read()
at this time the entire data that is the one which flowed immediately when connected to the device and the one that i actually need after passing command is both acquired. This is undesirable. I need the data which i read only after sending the command. So i was wondering if there is any way to clear the tcpclient socket before we do a read. The manual doesnt show any such method.
Binding & Connecting Using Sockets?
Sep 29, 2009Here is an issue with a socket I am having:
Public Sub Connect(ByVal server As String, ByVal port As Integer)
Dim IP As IPAddress = IPAddress.Parse(server)
Dim EP As IPEndPoint = New IPEndPoint(IP, port)
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The socket is declared like this, at the top of the code:
Dim sock As Socket
What is wrong here? It says Object reference not set to an instance of an object, which is a NullReferenceException.
C# - Sending A String With Sockets?
Aug 20, 2009I am using Nektra's Deviare to hook winsock's send method calls. My ideia is to learn to also send messages through the same socket than the original application. So what I'm doing is when i detect the first call to send message, I save the socket id(the first argument of the send function), so I can use it later.
So here is my code:
uint socket = 0;
[DllImport("Ws2_32.dll")]
private static extern int send(uint socket, string buf, int len, int flags);
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This last messagebox is poping up always -1. Why should be it?
edit: calling WSAGetLastError() returns 2. Which I do not know what it means, as it doesn't seem to appear on msdn.
C++ Sending Structs Over Sockets
Aug 25, 2009i am using vb.net and i would to send some structs to a C++ tcp server.The problem is the structs i am sending might contain other structs.[code]Lets say i want to send FirstStruct over to the C++ Server.
View 2 RepliesCreate Sockets And Communicate Over Them?
Mar 4, 2009I am actually new to VB.net...i have managed to create Sockets and communicate over them..but i dont know how fire sql queries through sockets as they take in Byte data as a input...i want to actually pass queries through sockets and retrive those results...i am using mysql database....i have actually tried changing the connection string (the ip address) for a static network but i think sockets are better for dynamic ip networks.
View 1 RepliesNet.Sockets Wait For Streamwrite?
Nov 25, 2011Net.Sockets wait for streamwrite?
View 2 RepliesSend Email Using NET Sockets?
Feb 18, 2003This code will allow you to send Emails using only .NET Sockets. This code was adapted from sample code on[code]...
View 7 RepliesSend Email VIA Sockets In VB?
Jun 16, 2009So basically I would like to know what goes on behind smtpclient, webrequest and all those.
I would like to know if its possible to connect to an smtp server with sockets. Also, can anyone recommend a good OOAD(object oriented analysis and design) tutorial or book?
Sending A File Over Sockets?
Apr 14, 2010I know there are lots of examples here on the forum, but all to difficult to understand.I have a client:
I have a client:
Imports System.Net.Sockets
Imports System.Text
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Sending Image Sockets?
Jun 11, 2011i want to send an multiple screenshot image.. and i want them to send one by one from my client to server. im using vs2008.
View 1 RepliesSockets And Timeout Errors?
Jan 3, 2011I'm building a program that has a very basic premise.
For X amount of Objects
Open Conection
Perform Actions
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.NET Asynchronous Sockets Packets Getting Lost?
Oct 15, 2011I made a TCP server which communicates with multiple clients at once, but I can't seem to be able to make them stable. When one of the client sends 100 packets to the server, the server receives only a few of them.Here's the client code in PasteBin. It shows how the client connects to the server and then sends 100 messages in a For loop to the server.And here's how the server handles the connection. I couldn't paste the full source as it's hundreds of lines long so let me know if it's missing any mandatory parts and I'll upload them as well.
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