I'm quite not so familiar with vb.net. so please bare with my query.
does vb.net support RTD function?can the datagrid be used as RTD client?
there is an app with RTD server and I'm presently using excel as RTD client but wish to move out of excel.
Can't find any free ones so thought I would work on one on my own for the heck of the learning experience with TCP stuff.I'm about ready to start on the messaging aspect of it.The biggest thing I'm wondering about is figuring out when people are online.I'm not too sure how the whole thing works.Say I turn on my messenger. Would my messenger just send a message to all IPs on a certain port to say I'm online and then wait for a message back from the IPs that can return messages and then figure out who is online that way?
View 13 RepliesHey guys, I am trying to send data from client to server (encrypted) and the string sent from the client is not the same as recieved from the server. I've been killing my brain for hours to get this to work but I cant manage. Im converting everything to Base64 string.
Client:
Public Sub SendMessage(ByVal msg As String)
Try
SyncLock myclient.GetStream
sw = New IO.StreamWriter(myclient.GetStream)
[code]....
Client/Server Application in vb.net 2010 i have created but it was just basic one. I need to show send data from client to sever and sever to client and and more functionality. (like showing price ot item or anything
View 2 RepliesWe are creating a Who wants to be a millionaire style game in VB. Our server is pulling information such as questions and answers from a Access Database and sending them to the contestants (Clients). All transfer of information is directly from the server to each client. One of the "Life Lines" we want to use is "Ask a friend", where one client is able to Instant message another client for a short time to get help on the question.
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I am wondering if anyone has a tutorial or source code to help me get started with creating a IRC Client that will connect to a IRC Server. I just want to make a pretty GUI to modernize it a bit and add some more features etc purely for educational reasons & because I need a new project.
If anyone has a tutorial or source code that would be great. This is a couple of steps up from my last project so I will need a guide to get me started etc. I have been searching on various sites etc but have found nothing so far.
I'm working for a socket tcp/ip. I have a server form on Server PC and client forms on all clients. I want the clients auto find and connect to the server PC when I open connection on server form? (in common, I have to set the server IP and ports to each clients, if not they cannot connect).
View 3 RepliesI just finished making my project, its a Registration System using Visual Basic 2010.
How can I make a server that allows client to open the system? so they can Add, Edit, Delete, Save, etc...
P.S. I try file sharing but it doesn't work. using win7 to winXP.
I am currently learning how to program in VB and am using sample code to make a VB Winsock client and server. I beleive the sample code was from VB 6.0. [code]Overload resolution failed because no accessible 'GetData' accepts this number of arguments.I am getting the exact same error in the exact same place in the server aswell. I have tried removing the vbString, but it comes up with a warning and the program doesn't function like it should. I am programming this in Visual Basic 2010 Express.
View 3 RepliesMy app doesn't work on clients PC's who have .NET FRAMEWORK 4 CLIENT PROFILE...when I switch the target framework to .NET FRAMEWORK 4 CLIENT PROFILE in my development environment, I get a ton of errors. Is there a fix for this besides installing the full framework version on the client PC?
View 2 RepliesI'm doing a small project. It works on a LAN. The working of the project is:In client side, a user would enters "username" and "password". It would sent that to the server, along with the time.The server would authenticates info on checking a db and writes some info to the db.Also, the server should be able to sent some commands or instructions to the clients.These commands on received by the client, it would invoke certain functions/subs on the client based on the command.So, would it be better to use TCP client & listener or WCF ?
View 6 RepliesI have started to learn how to use the TcpListener class to create a server/client chat facility, But im having some issues as to how to perform this at the moment i have the following code for the server.
Dim counter As Integer
serverSocket.Start()
ListBox1.Items.Add("Server Started!")
counter = 0
While (True)
[Code]...
Client Accepted (I understand would most likely need a new thread for each client who is accepted, Once accepted , Return to the main loop to check for more clients.) No Client Connecting I understand that this may have to be done in a thread but ive not looked into using a seperate thread for this to infinitely run.
I am developing VB.Net application (VB.Net 2010) with SQL Server 2008 R2 as back-end.Will it run successfully on thin client machine ?
View 7 RepliesI'm trying to make a client and a server connected in vb 2010. how to make a client and server connected? There is only vb2008 in the codebank and if my vb2010 tries to convert it to vb 2010 it will error.
View 1 RepliesI'm creating a VB2010 application which will require a connection to MSSQL. Should I Install SQL 2008 on my computer then use MS SQL 2008 as my data source or skip installing SQL 2008 and use MDF instead?
Also the program must have the following requirement
Program must use SQL as their database source End user must not install SQL server on their machine Program must be able to update (sync) the local SQL database from SQL server on the web. (User will have option to delete everything on their local database and load everything fresh from the server or to merge the update with existing data) Programs will (most of the time) run in an offline environment. When the user have access to internet they can update the database The program must allow user to add,edit, delete their local database while offline Only certain user (authorized user) can update their local database back to the serverC
Is it possible to created a program that meets all the above requirement ?
I just us visual stadio 2010, I want ask a question about VB10 develop a OPC client to connect SIEMENSPLCFirst in PC, I use SIEMENS software create an OPC server, then, add reference OPC control in VBthen I input some code in VB, that connect to OPC server, following is main part of code
(1) connect OPC server
Dim WithEvents MyOPCServer As opcsiemensautomation.OPCServe 'define OPC severMyOPCServer
[code].....
I have a simple client/server program that sends a message to the server from the client.
Here is my
Server
Imports System.Net, System.Net.Sockets
Public Class Server
[Code].....
I'm developing a Windows application that runs on a terminal server and users connect to it via remote desktop. Standard stuff. However, I would like to know something about the user and I was wondering if there's a way to get some information about the client that the user connects from (his local machine).
View 1 Repliesi just wrote a simple java script function which will return true or false, even when the function returns false my server side button click event was firing. this is not happening regularly. i am using vs 2010 and ie 8 and vb.net 3.5, this is not happening all the time [Code]
View 1 RepliesI made a setup for my project using installshield, I installed the app on another computer but It doens't start.
View 18 RepliesI have an app that uses an SQL Server Express 2008, .mdf file.On my computer where i've coded the app all work's fine using this
If conexiune.State <> ConnectionState.Open Then
Try
conexiune.ConnectionString = "Data Source=.SQLEXPRESS; AttachDbFilename=" &
[code].....
Ok, got a simple chat client working. Added code to the ~client~ so that when it receives certain codes it will change the color of the text..
[code]...
It takes away all { codes like it should, but doesn't quite colorize correctly.
I have an exe file that I have copied to test workstations and would like to launch that application instantly when needed from a dedicated server. I could do an agent based (timer) application where client application checks every 2 minutes (or so) for a file on server, it there file is modifoed then it launchs the GUI app on the workstation.
I really want an agentless approach and have tried PSexec and MS SCCEM agent but it still takes 3-4 seconds to launch on each machine one after another. If we are talking about thousands of machines in my environment there could be delay of more than an hour to launch app on each machine.
I was wondering if socket programming is the best approach where instead of a timer; app listens to a port and when it sees it it launches local exe file. I am new to socket TCP/IP programming.
I'm trying to make a Client that will automatically run a .DLL that I have created and send information over port 80 to my Server program that will take that data and import it into a database for me. Problem is, I don't know where to start as I have never done this before. I want to do this in VB .NET as this is the programming language that I know. What are methods of doing this? Is there sample code out there for something like this? My google searches are failing me.
A better layout of what I'm trying to do:1. Client Runs .DLL, retrieving information from an Excel file.2. Client takes these properties with the data it contains and sends it to a program outside of the local network through port 80, my boss refuses to let me use any other port.3. Server accepts the data and builds its own properties to be imported into my Access Database.4. Repeat over, and over, and over, and over.
I plan for the server application to be a console application, and the client to be a windows form.
I'm trying to code to run 2 instances of the same client at the same time.Using a simple form with a button with system.dyecnostic.process.start(program path) to run the instance to start with.Now the problem starts with trying to run a second it just loads and closes and sends me to the first. how to negate this so I can get 2+ of the clients up?
View 3 RepliesCan someone tell me what the differences are between the Full and the Client Frameworks? In which case use which?
View 2 RepliesI created a dll for my host and client, but but does not work! where's the error?
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I'm breaking my head over the next problem. I have 2 applications (client/terminal). the client reads out the webcam and generates an image. This image needs to be send to the terminal which can accept multiple clients. At the terminal all received images are placed in an ordered panel. The purpose of this application is to monitor multiple webcams.What i can't get to work is how to send it on the client side and receive on the terminal side.
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I want to make my client & server fully working. If a client connects to the server it should tell that there is a new client connected. if a client disconnects it should tell me a client disconnected.[code]it says in my patcher window(where it should add the text) that it's succesfully connected.but at the server side its not saying there is a new client connected/disconnected, how can I do this?
View 2 RepliesI've created a multithreaded application that copies data from one directory to another, and I'm having trouble getting it to work properly on clients' computers. All computers running the software have Windows 7 and the .NET Framework 4.0 Client Profile installed, which is what I've compiled the program for. I have two threads: one does the actual copying, and the other updates the UI on the program. Whenever I run the program on my computer, even if I'm copying 45 GB, for example, it runs fine. However, if I run it on another computer, it will sometimes freeze the entire computer, so then I have to manually shut the computer down in order to use it again. I have been trying to find out why this occurs, but I cannot. Does anyone think he/she can provide me with some ideas as to why this happens and how I can prevent it from occurring?
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