VS 2008 Make A Chatroom Allowing Multiple Clients?
Jun 30, 2009
How can I make a server application? How can I then create another application that is meant for the clients!? I have tried to look for something for over 3 months now. All that stuff about TCP/IP just is not working! Using TCP/IP I cannot connect to anyone out of my network! How can I make it so when you start the client application it will automatically connect you to the server. Then having 2 textbox's and one button that says "Send". One text box will have what has been send and recived and the other textbox will be what you type to then later send it! How can I make it work with up to five clients!?
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Sep 21, 2011
l have just written a vb.net application and would like to install it on the server such that various users would access the central database on the server how would l achieve that in vb.net
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Apr 6, 2010
I teach programming at a high school and I have used VB 2005 Express (in a computer lab of 33 clients) for a number of years without a problem. However, this year I switched over to VB 2008 Express and now I am constantly having registration issues. I have found the following ...
1. You must re-register the product for every user on that client
2. Each client must have a unique registration key
3. You are allowed only 30 days of useage without registration
What is happening is I asked my students to register the application themselves. But we keep getting this registration request every time a student switches seats in the room. Now we are getting an error message that says we have had too many registrations from this IP address.Is there a registration key that will work on more than one computer? Is there any way around the registration issue?
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Dec 12, 2009
I made a simple chat system that connects to a server with a client one on one. I'm not really sure how to get multiple clients with the server so that you can see everyone's messages. Here is the source code. The Server only accepts one client at a time.
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Mar 18, 2009
I have a large class that I built to act as a TCP server for one of my silverlight applications. When a user connects it stores the tcp client into a table for later communication. The problem is that when I send data, with more than one client connected, it loops through both open TCP Clients but some how sends the data twice to the same client.... the other tcp client never receives his data. This isn't a logic issue as I can step through the code and see that it is clearly taking each individual TCP client out of the table and sending it the data. They all use the same port... could that be the issue? And if so how do I make it so that it can connect on one port then transfer to another? I have tried using different computers for connecting but still the most recently connected client receives all of the packets of data.
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Jun 21, 2010
Is it at all possible to create a chat room in vb 2010? C4F is only for vb 2008 and there's no way of converting my project back to vb 2008. The only tutorials I can find are for vb 2008.
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Jan 8, 2010
I have been struggling to find a solution for this problem. What I need to do is build a server application that accepts tcp client requests from different clients running on same port say:1003. I experimented by using asynchronous mode call backs etc. but it disconnects once connection is established and does not respond for further requests from the same client.
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Mar 8, 2011
i want to designe a simple program that have one server and multiple clients.i program with vb.net,but dont know anything about winsock, can you send me a sample code for start.
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Jun 25, 2009
I have been programming a TcpListener Program and I have everything working right! So far... Except that when I have multiple clients connecting to my Server... I used a try catch statement to catch the error and it says that tcplistener doesn't allow multi connections... think creating a new thread for each connection sounds like the most reasonible answer but I can't grasp the concept of it...
Here is my frmMain:
Imports System.IO
Imports System.Net
[code].....
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Mar 2, 2011
I have a ASP.Net VB.Net application, which I developed an deployed in about 2004. I have just upgraded it to a new server and IIS 6.0. The application requires users to login from IE it and maintains their State using sessions on the server. I would like the users to be able to have multiple browsers open, each running with unique data on their client system. Is this possible, if so, what do I need to do?
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Jan 6, 2010
However I have hit a massive brick wall with my program. My program that I'm trying (can't emphasis this word the importance of that word) to create a Client/Server chatroom using TCPClient in Visual Basic. So far I can get my client to speak to my server. However, i'm trying to get the returned data to display in a listbox which never happened, i then tried a label, which again never happened then a text box which I'm sure you can figure out how that went! I'm not great at networking programmers nor am I not bad I'm terrible but duty calls when it comes to projects.
The code I currently have was mostly taken from the net but when I have the program fully work and I understand how the software works I intend to heavily modify for it to suit the needs of what I need to achieve. where I can get my client to display the data from the server that I have already sent to the server (which displays successfully within the server).
[Code].....
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Feb 10, 2010
I'm new to network programming and i'm trying to write a server that can communicate with multiple clients through tcp/ip, the clients need to communicate with the server to and with the other clients. Currently i've got a client server program that works fine for only one client:
[Code]...
I'll guess to accept multiple clients i have to create some clienthandler class at server side, but i have no idea which code it has to contain, i've already spend hours searching on google but didn't find anything usefull. Can somebody help me with this ?
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May 31, 2010
I'm using a SQL database and I'm writing a VB.NET client application. This application is used on multiple computers at the same time. If one of the clients makes an update to the database I would like to have the other clients to be aware of the update.
Has ony one already done this before?
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Sep 22, 2011
I am facing a problem in VB .net Client/Server application where I am successfully able to talk between them using TCPListener and TCPClient class usage. However, when I try to connect another Client to the same server on the same welcome port, it errors out throwing an exception or behaves very unexpectedly.Isn't it true that the Server connection is on a WELCOME PORT for all the clients, and that each client connected gets a new port to carry on its communication with the server AUTOMATICALLY (according to the Tomcat webserver working)
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May 17, 2010
I am developing project on cyber cafe using vb .net 2005 and winsock i don't know how to accept connections from multiple clients to a server having winsock control
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Jun 9, 2011
How to make clients on sql server i mean when i will install my application on clients how i will connect it with sql server?
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Oct 20, 2011
Is there a way to make a setup package on VB 2010 that will check prerequisite addons on clients PC?
The setup will check if MS Access 2010 Engine and Crystal Reports Runtime 2010 is installed. If the installer detected its already installed it will just install the application.
If one or both prerequisite is not found the installer will install the addon automatically.
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Oct 4, 2009
I am programming a chat like application using Tcp. Now I have a probem. I am going to have loads and loads of data being transferred so I will have to use 4 seperate ports.[code...]
My problem is for me to use a maximum of 4 ports all together transferring data from the client(s) to the server(s) I will need 4 clients and 4 servers. I need to open 4 instances of 4 clients. I was going to put a client in a form and then when the client is running it creates 4 instances of that form but than there would be too much confusion going on. I think there my be a way to use Classes instead of forms.
[code...]
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Feb 28, 2009
Using this example here, do you think it would be possible to develop it to show who is connected to the server?
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Mar 16, 2009
ok in my text box there's is all way's going to be new words in it and they look like
this
ADD ADS ARE ARS ASS DAD DES EAR ERA ERS ESS RAD RAS
RED RES SAD SAE SEA SER ADDS ARES ARSE DADS DARE DEAD DEAR
EARS ERAS RADS RASE READ REDD REDS SADE SARD SEAR SEAS SERA
[Code]..
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Jun 7, 2009
I made a chat-room in Visual Basic, but when I run the deBug it works fine. When I build the application that's where things go wrong. I am using C4F-P2P.
Unhandled exception has occurred in your application. If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately.
An error occurred creating the form. See Exception.InnerException for details. The error is: Could not load file or assembly 'C4F_P2PWinformControls. Version=1.0.0.0, Culture=neutral. PublicKey Token=9569f7192217be80' or one of its dependencies. The system cannot find the file specified. ""DETAILS"" See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
[Code]...
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Jun 25, 2010
I've got a game I would like to build, it will require a central game server where peoples data (game data :-)) will be sent to and shared with other players - how is the done. Is it remoting? TCP? something else - I need to study up on it but want to make sure I'm learning the right thing.
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Aug 12, 2009
Attached are my source files i found a source and messed about with it, itsa chat client and a server which listens to clients anyway the server sends out all the messages to each client, all i want to be able todo is have a little box in my client, which is there, but has no function, its meant to list all the users currently connected.
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Sep 10, 2010
I recently added the crystal reports controls to my project. I'm using Crystal XI release 2. When I built my project I include all the crystal dll's in the release folder.I haven't done a setup project yet, so I just take the release folder over to the client and paste it into a directory in the Program files folder.I am getting an error on the crystal report form. I assumed as long as the dlls where in the release folder everything would work.Do i need to install a merge module or something on the clients pc?
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Jun 26, 2011
I am planning to make a multi-user chatroom client. I have got a web hosting, but I don't have the server. I want to know how to create the chatroom from my webhost and what type of method that I would need to connect it?
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Sep 24, 2010
How to make clients on sql server i mean when i will install my application on clients how i will connect it with sql server?
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Jun 24, 2009
My mate & Myself are currently building a IRC Client, a problem we have come across is when opening a chatroom the form Freezes for example. We are currently using arrays so we can open multiple chat rooms and at this current time to open a chat room we use
Code:Channels(ChatIndex).Show()
The form opens but freezes. I have also tried using:
Code:Channels(ChatIndex).ShowDialog()Application.DoEvents()
Using the above code, the form does not freeze but appears we can not access any of the controls such as (RTB) What would be causing the form to freeze on .show(), Has anyone else had any similar issues?
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Jun 25, 2011
how to create a multi-user chatroom program. I don't have the server, but I have got a web hosting. I want to know how I can connect to the chatrooms by connect to my web hosting using with httprequest?And also, I would like to have code to allowed me to send the users private messages, ignore the users and kick/ban the users out of the chatroom.
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Nov 4, 2010
I have used CSV files before for a simple database of about 12,000 items - this was a simple one page form... Now I want to have the same database but with the data available to multiple forms at the same time.. eg.. Form 1 displaying persons 1,2,3,5,7 name, addy, phone etc and form 2 pulling info for persons 2,3,4,8... Is this possible with CSV files?? or even XML?... The only other thing is that I do it all in .NET 2.0....
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Oct 17, 2009
I'am try to make multiple file deleter in visual basic so here is my code.
Public Class Form7
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
OpenFileDialog1.ShowDialog()
[code]....
But my problem is that if add two or more files it just deletes the last one on the list box. How can i make it delete a the files on the list box?
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