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.
View 3 RepliesI 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.
View 3 RepliesI have created an application using ODBC data sources.it runs on a local machine well. but i want it to run on client machines from central server. the following is the code that i use:[code]where cleaners is a data source i have manually created in ODBC data sources.and then uses the connection for inserting,deleting and so on.can somebody help me with a code that can enable it access the remote machine.
View 1 RepliesMy application is in VS 2008 (vb.net Windows form)
I want tips for this:
What types of care I take for it?
What types of problems can be generally happen?
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?
View 6 RepliesI created application database by vb.net and sql server 2005 now I have some computer on the one of them I installed sqlserver 2005 and other (Clients) computers I installed Application how I can connecting my application to sql server on the pc1 or how I can using connection string.
View 2 RepliesHow to make clients on sql server i mean when i will install my application on clients how i will connect it with sql server?
View 3 Repliesi 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.
View 1 RepliesActually I have created a chat application is it possible to send data to particular client only?
View 1 RepliesHow would i check a game server is running?
View 2 Repliesif I could make a tcp server and client so he can restart a game server from a LAN connection. The game server is a test server for online playing games it allows users to test there created maps but after so many errors the program is told to close out the running server cause of errors. The problems are fixed just by restarting the server. I have the client working as far as i know (cant do a full test without a server). During the creation of the TCP client built within the server (to receive commands and send reply) ive used
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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:
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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 ?
Basicly I want to create a server that can read data sent by multiply clients and give feedback to them I have found some tutorials before but its only oneway trafic (Client>>>>Server) and the server crashes as soon as the client is disconnected
ps. If its a tutorial with VB it will be nice other visual codes are also good
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)
View 2 RepliesThis is the situation: i have the central location with the main computer,and 14 distanced locations connected in VPN and often we need to update program manually (on distanced locations) by overwriting the existing .dll-s of the program and this is pain in the ass to connect remotely to 14 locations and on each workstation overwrite the .dll files so i want to create application which is going to be installed on each WS and by running this app it will check the program folder on central computer and if there is any file with newer version then existing one on the WS it will copy it from central computer and overwrite the old file/s on WS. It is a small app with two buttons and progress bar but the main thing is the Update now button because i dont�t know which commands it should commit.
View 22 RepliesI have a working game server browser project in VB.NET 2008 and I'm trying to fix the CS 1.6 and CS-Source query protocols. Where can I go to learn how to query a game server? The code worked in 2004 and now I want to update it [Code]
View 2 RepliesI 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
View 2 RepliesI have 2 clients connected via a server program.When 1 client hits an arrow key, a picturebox moves on client1 and on client2.Before adding this network functionality, the picturebox on client1 moved fast with each click.Now, there is a delay of like 2-3 seconds.I know the code isn't optimal, but i'm not a networking wizard.What i'm doing is when pressing a key on client 1, it passes a text to a textbox in client 2 which then has the picturebox move in client 2 depending on the text.The slowdown occurs on client 1, which is odd because the picturebox isn't directly connected to the network code.[code]
View 3 RepliesI 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.
View 1 RepliesI 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.
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Using this example here, do you think it would be possible to develop it to show who is connected to the server?
View 10 RepliesI 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?
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.
View 4 RepliesI 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?
View 2 RepliesHow 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!?
View 4 RepliesI 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.
View 6 RepliesI have an application which writes to and reads from a database. I'd like to be able to have the application installed on a number of computers with the database installed on a central server which all of the applications will connect to.
first of all, installation (installing the app is simple, but how can I get an install program to put the database on the server?), and next, concurrency errors?
I understand that having more than one person trying to update the database at the same time is likely to cause concurrency errors, but short of deploying my application and having everyone try to write to the database at once, I'm not sure how to approach this.
I'm developing an application that detects Source-based games running on the LAN. Following up on the specifications provided by Valve, I have it narrowed down to exactly what I want: making a UDP connection on port 27015, sending an A2S_INFO query (0xFFFFFFFF followed by "TSource Engine Query") and parsing the binary reply.
This is the code I'm working with:
Dim sIP As String = "192.168.0.154"
Dim nPort As Integer = 27015
Dim connectionMessage As String = "ÿÿÿÿTSource Engine Query" & Chr(0)
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In Mac OS X I can take advantage of more than 1 core using GCD (Grand Central Dispatch). What is the equivalent for a Visual Basic program?
View 2 RepliesI'm using a central startup routine to initiate several TCP connections, start up a background thread that does some monitoring, and instantiate a group of objects that track information throughout the lifetime of a networking session.
There are periodically server-side problems with the protocol I'm working with, at which point the whole mess has to be torn down and set back up, so at the front end of the startup routine I'm disposing of instantiated tracking objects, killing the monitoring thread, and disconnect/close the existing sockets (if they're already set up). At that point the sockets may be in the middle of an asynchronous send or receive operation, which is causing system exceptions when the socket is torn down and then the asynchronous delegate gets called and EndSend or EndReceive thinks there isn't an object there anymore.
I had assumed .Disconnect and .Close would take care of these async processes, and I'm a little lost. Is there some one-shot method I can use to abort those async operations before I tear the sockets down to re-instantiate them?It never hurts to try. In a worst case scenario, you'll learn from it.