I have recently found some code online for a chat application that allows multiple users to connect and talk to one another using a basic server, however I want to build on that and make an IRC like program that will allow me to have multiple channels (eg.Sports, Music, Gaming) etc. I was wondering if anyone could give me a hand because I have been playing with this for about two weeks now and I still havnt been able to figure it out.
I made a simple TCP server (I've found the example on the web) in VB to receive data from about 40 TCP clients.The clients are not synchronized but sends data about every 18 minutes; the problem is sometimes several clients sends data at the same moment, so I can't receive data.I also made a second program that reads the data (server program writes data on a file, read from the second program) scheduled.
My question is this: I've seen on the web examples about Multithreaded Server Socket Program, so I suppose this could manage my 40 clients (but now the clients are syncronized and send data at the same time in client mode) or is better get data (I have a central client that asks data to all 40 devices in server mode)?
Second question: can I make a single program where I run both TCP client and TCP server at the same time?
I am creating a very simple Voting System, that will be use on electing new set of officer in a teacher cooperative...
So I have to create two separate program, a Server Program that will manage all the information in the election and a Client Program where voters will vote their selected candidate...
The election officers wanted that the Server Program will display the Voting Results at real time... So when the Voter finished voting, The Voting Result displayed by the Server Program will also be updated every time the Client Program Insert the data to Database....
An action listener in Server Program that will execute if new data is inserted in a Table in the Database made by the Client Program...
The problem I have is: When I click on cmdListen in the server form and cmdConnect in the client form,both programs won't respond and they crash for some reason I don't know.
Client source code:
Code:
Imports System.Net.Sockets Imports System.Text Public Class Form1
[CODE]...
Code: Imports System.Net.Sockets Imports System.Text Public Class Form1
When I try to run a program I've written from a network drive on a windows server 2008 machine it always gives me: Open File - Security Warning The publisher could not be verified. Are you sure you want to run this software? Unknown Publisher This file does not have a valid digital signature that verifies it's publisher.... I need this message gone.
i want to learn this kind of program.. and this are my problems:
1. i dont know how to connect my vb.net program to sql server?? can you help me. 2. how can i call my fingerprint scanner to my vb.net program. 3. how can i input the time eveytime the employee's touch the scanner ( log-=in and log out)
I'm a starting programmer, and for school I need to make a project.We need to make mastermind in VB.net.I already have one part of the task, (make it work singleplayer)but, we must make it possible to run the program with a sort of server, so 2 people can play witch each-other.I've worked hard on my multiplayer game, but if I want to startup my multiplayer I receive some strange message:url...The zip contains the server(we got that from our teachers), and my project.
I do have a program that uses MS SQL Server as database. The problem is that when the fire wall of the server is on, I can't connect on the server. But when i turn it off, it works! This is the connection string I'm using:
I have copied some code from the MS website which should run a DTS. The code runs without error and the event messages are as expected. But the DTS does not actually run. I can return information from the DTS such as the description and step name, but the exeution is not actioned.[code]...
I have been working on a server and client tcp/ip program and am having some issues. I start the server and then start the client, and the connection always fails. I don't know what's going wrong. Here's the
I am trying to write a program that has a server/listener program and then 2 client programs, the 2 client programs are supposed to be able to chat with each other. Can anyone point me in the right direction on this?
I have been a web developer for a number of years now and I am making the move over to form based applications. I am trying to do what I believe should be relatively simple, yet I have no idea where to start.At home I have a machine that family members tend to use P2P programs, which causes my online gaming to suffer with glitches.I want to create a server and client program.where the client app (on my laptop) consists of only one button, when the button is pressed I want the server app (my Desktop) to kill the P2P program.I already know how to kill/start the application in question.I have previously done something similar but I had used winsock (not in VS2010) and was a long time ago.
1) Sending a value/string from the client app
2) receiving the value/string on the server app
I was told to look into the system.net.sockets namespace, but I haven't found anything on the web or here that isn't a full project / over-engineered "Basic Tutorial" that helps to break this down
I Want To Create A Server Program On My Computer AndClient Program That Can Run On Other Computers, The Client Program Will Connect To The Server On My Computer, But I Don't Know Code To Do This.
I am trying to create a server/client program in vb.net. What I am trying to do is test a battery that is running on a handheld (which runs Windows CE 5) by connecting to a "server" and sending information every 10 seconds or so. I am very new to .NET, and am not really sure how to go about doing this. I want two separate applications running, with the server-side keeping all of the data, since the battery is going to die, and I will lose any information if I keep it client-side. I am also new to networking, so I was not sure of whether I should create a Socket, or if I should try to do something else.
I'm interested in creating a simple localhost server that can serve dynamically generated data from a ListView into a formatted web page. I'd also like to "control" or otherwise have the program execute functions based on what links are clicked.I've been searching for solutions and it looks like it would be a fairly simple task but I'm not sure exactly what the best way to go about this would be.
I created one accounting & inventory package using VB6 + SQL Server 2000 + Crystal Reports. Now i want to distribute it to my client as a packaged software in CD. how i can pack all these as one.
I am connecting to my mail server using IMAP and Telnet. Once I am connected I am marking all items in the inbox as read. Some times the inbox will only have a couple of e-mails, sometimes the inbox may have thousands of e-mails. I am storing the response from the server into a Byte array, but the Byte array has a fixed length. [code]...
But the response from the server varies based on how many e-mails are successfully marked as read since I get one line of confirmation for each e-mail processed. There are times where the response may contain only 10-20 lines, other times it will contain thousands of lines. Is there any way for me to be able to get the response from the server in its entirety? I mean it seems like I would have to know when the server was done processing my request, but I'm not sure how to go about accomplishing this.
So to reiterate my question is: How can I check in my program to see when the server is done processing a response?
I created a program in MS Visual Web Developer 2010. It has a form that simply launches a script that manipulates a database. The project lives in several files and they are all inherited so they see each other and it accesses a MSSQL Express DB on one of our servers.
When I F5-Run the project locally on my PC it works fabulously. When I copy it to a web-enabled (application) folder on the server it executes but almost my very first line of code fails with this error[code]...
