TcpListener/TcpClient not working! - C# Discussion Boards

Sathesh Sakthivel27-Apr-07 22:30

Sathesh Sakthivel

27-Apr-07 22:30

Hi Rushiraj,

On which line does the error occur? If it's the FromStream line, I too have experienced this error - From what I can figure it's due to corrupt data being in the stream, which without seeing how you are filling streamImage I can't tell. Slap in a couple of breakpoints and perform some checks to see if you are receiving all the data that you sent - I'm experiencing the problem of not receiving all data,and have just posted.

Regards,

Satips.

rushiraj.jhala27-Apr-07 22:55

rushiraj.jhala

27-Apr-07 22:55

hi
error occurs at this line
bmp.Save("c:\\test.jpg", ImageFormat.Jpeg);

and data is correct.

If I do only

Bitmap b = new Bitmap(32, 32);
b.Save("c:\\test.bmp", ImageFormat.Bmp);

it is also giving same error.
I think it should create blank bmp.

Thanks,
Rushiraj

Christian Graus27-Apr-07 23:14

27-Apr-07 23:14

'A generic error occured' usually means the error is within the underlying, Win32 stuff.

One thing that will generate this error, is if you have a bitmap somewhere that was opened from this path, as it will have a lock on the file in question.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: how I can find more than one Column at the same time

Luc Pattyn28-Apr-07 0:21

Luc Pattyn

28-Apr-07 0:21

Hi,

"A generic error occurred in GDI+" indicates something went wrong in Win32 code.
I guess bmp.Save failed because of: file in use, path does not exist, disk full,
or something similar. Try the same path with either Windows Explorer manually,
or programmatically with File or FileInfo; that should tell you what the problem is.

Smile | :)

Luc Pattyn

[My Articles]

Christian Graus27-Apr-07 23:18

Re: How can Drage elements

27-Apr-07 23:18

mahmoud wafy24 wrote:
please I want a solution to this problem quickly

Yeah, as opposed to the other folks here, who are all hoping it takes a week, I know.

This is still a stupid question. Perhaps if you took the advice you were given, and phrased your question better, we'd have some idea what you're talking about.

I assume you're selecting from a database. My advice would be, turn off your computer. Buy a book on SQL ( or perhaps learn how to use google, which means turning the PC back on ). Work through whatever tutorial you select.

And, in future, don't just ask the same question over and over, think about what the answers you get mean, and how you can help us to help you. If you mean something other than how do you add more than one column to a SQL statement, then please make clear what it is that you mean.

For the record, select * from myTable will return all columns, select col1, col2 from myTable will return the columns names col1 and col2.

Christian Graus27-Apr-07 23:19

TcpListener/TcpClient not working!

27-Apr-07 23:19

You need to write code to support drag and drop for the object you're dragging/dropping. There are tutorials on MSDN

Lord Kixdemp27-Apr-07 17:57

27-Apr-07 17:57

Hello everyone!

I have 2 programs, a server and a client. If I start them both on the same computer, it works flawlessly. However, if I try a computer on the network (which I can do Windows file/printer sharing with) with one of the apps, the client says that the target machine actively refused it.

At first I thought it was my router, since I've been having some problems with it lately. But then I used my neighbor's wireless connection with 2 laptops and tried it, no result. So it's got to be my code.

Server:

server = new TcpListener(port); // port: 77
server.Start();

Client:

sock = new TcpClient(host, port); // host: 'localhost' or '192.168.0.100'; port: 77

As I said, both programs work fine on the same computer. Does anyone know why this might happen? Maybe my neighbor's router is crappy too?

Thanks in advance!

Windows Calculator told me I will die at 28. Frown | :(

cc_wang27-Apr-07 21:03

cc_wang

27-Apr-07 21:03

I do not know if this can help....
for your information.

1) you can check your window firewall setting.
If your firewall is on,you can set the exception for port 77.

2) To get all the listenning ports at server, you can try 'netstat /a' command at Server command prompt.

-- To test the connection from client, you can also try 'telnet [hostIP] [port]' command at Client command prompt.

Wish u luck. Smile | :)

ccwang

bola_shokry28-Apr-07 0:43

bola_shokry

28-Apr-07 0:43

hi this problem faced me before , and after long time i passed it Smile | :)

go this link and you find a good discussion about it
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1099091&SiteID=1

i hope it work

Lord Kixdemp28-Apr-07 12:45

28-Apr-07 12:45

I use the Windows firewall and PeerGuardian. For the Windows one, I clicked 'Unblock' the first time I ran it, and PG doesn't block it.

Netstat gives me this:

TCP presser:77 presser Blush | :O

LISTENING

Wait, shouldn't both the local and foreign addresses be the same? Why is one 77 and the other zero?

And bola_shokry, that link didn't work.

Any more ideas? Thanks you both!

Windows Calculator told me I will die at 28. Frown | :(

bola_shokry28-Apr-07 13:11

bola_shokry

28-Apr-07 13:11

sorry , i tryed the link i found it dont work (i dont know why)
anyway , go to
MSDN Forums » .NET Development » .NET Framework Networking and Communication » problem in client/server application

start the navigation from this link:
http://forums.microsoft.com/msdn[^]

i know this problem , its boring Mad | :mad:

sorry again

Lord Kixdemp28-Apr-07 16:50

28-Apr-07 16:50

Well, his problem is kind of different. His computers can see each other on a network, mine can't. Frown | :-(

But I got something here. I disabled both the Windows Firewall and PeerGuardian and guess what, Apache works. I tried my program but nope, that doesn't work yet. But wait a minute... 'telnet 192.168.0.100 77' gets through! Then how come my client doesn't?! I updated the code:

IPEndPoint ep = new IPEndPoint(IPAddress.Parse("192.168.0.100"), 77);
sock = new TcpClient(ep);

But it still isn't working... Ideas? Thanks for helping me!

Windows Calculator told me I will die at 28. Frown | :(

Lord Kixdemp28-Apr-07 17:04

Bluetooth project + Bluetooth Stack + Help :(

28-Apr-07 17:04

Nevermind, that wasn't supposed to work. But this is:

sock = new TcpClient();
sock.Client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
sock.Connect(host, 77);

Wee, now I can play in 2 computers. Thanks VERY much! Wink | ;)

Windows Calculator told me I will die at 28. Frown | :(

InternetDial!!!

myousufq27-Apr-07 11:49

myousufq

27-Apr-07 11:49

Hello there,

I need to connect internet via C# using dialup. I can dialup existing dialup connection using wininet API but I wonder some body tell me how can we pass userid,password n dialup number at runtime. It would be appreicated please...

Best Regards,
Yousuf

NiZaR.TecH27-Apr-07 11:47

NiZaR.TecH

27-Apr-07 11:47

Hi everyone .. hows life goin with you .. !!

well ... i have a bluetooth project .. and i searched codeproejct for bluetooth related articles .. and found "Bluetooth Manager" .. the article was simply GREAT ... and the included library was more than GREAT .. so I downloaded the libraries and the code ... built it ... then when I started using it .. specially the function "DiscoverDevices()" ... it gave me the following exception :

PlatformNotSupportedException

and it says : Bluetooth.Net is not supported on this device.

i was like this : Confused | :confused:

... I mean how .. ? .. i use my bluetooth device ... dongle .. without any problem ... trasferring files ... between the PC and my nokia6600 and other mobile phones ... !!

but this problem is just confusing me ... i searched and found out that bluetoosh stack must be installed or something .. I guess bluetooth stack is a service or something ... but I didn't find the service in (Control Panel -> Administrative Tools -> Services)

i'm really confused .. this is the first and hopefully the last problem i might face .. then everything will be clean n clear ... !!

I'm using MS Visual Studio .NET 2005 ... Dongle USB Bluetooth device ... MS Windows XP Home & Pro .. both SP2 .. libraries are :

InTheHand.Net
InTheHand.Net.Bluetooth
InTheHand.Net.Sockets
InTheHand.Net.IrDA //i know this is for infra red but i added it n dunno why :P

anyone have tried or worked on a bluetooth project or tried searching and discovering devices ? then sending files and other operations .. ??

sorry for the long message ... but this is serious for me .. !!

thanks a lot in advance .. !!

multi-tire architecture

mehrdadc4827-Apr-07 10:44

mehrdadc48

27-Apr-07 10:44

Hi.
Can anyone introduce me some articles about multi-tire architecture (with sample)?

Best wishes

Re: multi-tire architecture

Christian Graus28-Apr-07 0:29

showing progress of a running Query

28-Apr-07 0:29

You mean multi tier. Now you know how to spell it, I'm sure you'll find heaps through google Smile | :)

Rocky#27-Apr-07 10:33

Rocky#

27-Apr-07 10:33

Hi every buddy,

Well I was thinking abt building some kind of a mechanism that gives progress in a progressBar while we access some information from the Database. So the core issue is, how to get the progress information from a query while it is running on a database. Lets say you’re making a long calculation from a ledger Table

Cust_Ledger(ID, , account_ID ,CustID, Debit, credit, t_date)

And u execute the query using the SqlDataAdapter or TableAdapter or whatever the case maybe, then how can u show the progress…

Thanks in advance,

Rocky

Re: showing progress of a running Query

Christian Graus27-Apr-07 10:46