Asynchronous Socket Programming in C#: Part I jfogni gxfofvq rbbecv ããã·ã£ã cxkdbxf guhycmqe ã´ã£ãã³ ããã° zptrvaw usgor
ReplyAsynchronous Socket Programming in C#: Part I rzfjvd hnozhbr huourk ããã·ã£ã mykufrd itsosrrb http://www.jpzvuittonbagsonlines.info/ pvknwwf kejvm
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ReplyHi, When i used the exe it is working fine,but when i use your source code it gives some exception like invalid operation exception.Please reply to me. Regards Shefeek
When I copied the source in a new empty project, the visual studio can not run it and brings me back with the same problem. However, running the exe file created by that project,l works well!! what's the problem?
ReplyEven, I copied the code in an empty project and ran it, again I got the same problem. However, when I try to use the exe file created by this new project, it works well!!!! what's the problem when executing with visual studio?
Replythankyou very
ReplyWhen I use your Exe, the system works great. However when I imp[lant the cs file into my C# 2010 Express envirement it will not run. I get an comment on GetHiostByName, should be replaced bij GetHostEntry. It works but is not giving me an IPv4 address. Then I get a error on the IPStr = ipaddress.ToString(); The system stops.
ReplyI love this example - for newbie like me. When I use both exe files for Client PC and Server PC, every is o.k. Then I use SockeClient.exe file to run on the Client PC and source code SocketServer.cs on other PC as a client. The Server sending a msg to Client is o.k But, when Client sends msg to Server, the Cross-thread Operation not valid message takes place. at line richTextBoxReceivedMsg.AppendText(szData); in method public void OnDataReceived(IAsyncResult asyn). Moreover, Client sends 123456 Server just get "1\0" on the szData Could anyone show me how to solve this problem? I use VS2008 Cheers.
ReplyHello there,
I am quite new to Socket Programming and I'm creating a program using the example code explained here.
Now, when I receive a message from a client, I want to show:
Client 1: message.
I can't seem to get that to work: what I get now is:
Client 1: m Client 1: e...etc
public void OnDataReceived(IAsyncResult asyn)
{
try
{
SocketPacket socketData = (SocketPacket)asyn.AsyncState;
int iRx = 0;
iRx = socketData.m_currentSocket.EndReceive(asyn);
String remEP = socketData.m_currentSocket.RemoteEndPoint.ToString();
char[] chars = new char[iRx + 1];
System.Text.Decoder d = System.Text.Encoding.UTF8.GetDecoder();
int charLen = d.GetChars(socketData.dataBuffer, 0, iRx, chars, 0);
System.String szData = new System.String(chars);
txtLog.AppendText(szData + "\r\n");
WaitForData(socketData.m_currentSocket);
}
catch(SocketException se)
{
MessageBox.Show(se.Message);
}
}
That's the code I am modifying.
Any help would be greatly appreciated.
The problem is that the socketData.dataBuffer is only holding one character at a time, and when you are appending the txtLog textbox, it will display as
Client 1: m
Client 1: e
Client 1: s...etc
You can increase the size of the buffer to accomodate the size of the socket's "ReceiveBufferSize".
Also, if you are writing to the screen, be sure to use a delegate to update your textbox. I apologize, this is in VB.Net instead of c#, but you can understand the idea of it. i.e.
Delegate Sub DoUpdateTextBox(ByVal pMsg As String)
Public Sub UpdateTextBox(ByVal pMsg As String)
If (Me.InvokeRequired) Then
Me.BeginInvoke(New DoUpdateTextBox(AddressOf UpdateTextBox), New Object() {pMsg})
Else
txtLog.AppendText(pMsg + "\r\n")
End If
End Sub
Reply