Creating A Server Client Based Windows Application?
Jan 13, 2010
I am trying to create an application for official use. The idea is to built in the Chat communication. I am wrtting some code for Chat Server/client.
1) Where do I keep the DB (suppose if I have SQL server on hosted web site)
2) Can I configure DB on my home PC ( no matter where client runs throughout the world if should refer the DB on my machine)
3) For Server - How to read the Users(Name and IP) from domain(AD) as well as on LAN.
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Jan 21, 2011
First of all, I want to say sorry if this is not a correct forum. I have built several standalone applications up until now. But now I need to create a server client application, the only database is on the server. The application itself is installed on all the client computers but not all of them are granted the same level of access to the database.
[Code]...
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Jul 18, 2012
Im planning to create a Remote Desktop Application and I'm having problem with viewing other computers monitor or screen.
Im not asking for the code on how to do it. and one more thing is it safe to use winsock in creating a client/server application?
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Apr 6, 2012
Case : I'm creating an application (desktop application) with VB.NET (actually windows form), and using SQL Server Express 2008 for its database.
[Code]...
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Jun 5, 2011
how to create Crystal Reports for Visual Studio 2005 for a Client Server application? The problem I faced is that when I created Crystal Reports for Visual Studio 2005 where the Crystal Report is displayed in the client application it does not get refreshed with data entered. It only displays data that was entered during the time of development. I think this is probably because the database path changes when deployed in a new environment while the Crystal report keeps referring to the database location at development time.
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Oct 28, 2009
I have developed 2-3 standalone windows application using VS2008(vb.net) + Sql server (2008,2005) and quite comfortable with stand alone windows application. Now i am trying to make a windows app which will share a server database on LAN. I googled alot about this but still no success. So i decided to make that as stand alone app and i just changes the connection string to use remote server database. Everything is working fine still. All the insert, update and delete query are same as stand alone n me not getting any problem while testing through one more remote client system. But while googling i heard abt "CONCURRENCY" control.So please guide me is anything wll b wrong in future wid my this application when i will deploy this to my users? What about locks and how can i implement this to my Insert, update and delete queries to control concurrency and maintain integrity ?Please guide me step by step becoz i m new be to client/server application.
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Mar 30, 2009
I've basically made a basic tcp server/client application. The thing is that I'm behind a router and so will be the other people that use my clients. I've had to use port-forwarding or the software "rinetd"to run quite a few applications online.
Let me explain: I'm on a lan network that connects to the internet. Whenever I want to host a server - for instance a basic ftp or http server. If I give my external IP to anyone, they won't be able to access my server. Even if I portforward, it doesnt work. I have to use rinetd here. For other applications, portforwarding works. I'm not sure how these things work at all.
Anyway, my issue now is that I have created this server/client application. I'm having serious doubts that if I run the server, I'll have to either a) portforward or use rinetd to get people to connect to my server. IF I need to portforward, that's fine. However, using rinetd would really suck... My 2nd concern is as follows: IF the person running the client is in a similar situation as me (i.e he's on a lan that has a router which connects to the net), will he have to portforward or use rinetd as well? If he portforwards that's fine. But I don't think I could get people to use rinetd.... Also, if there are more than 1 person on a lan trying to connect to my server, there is a big problem when they try to portforward: they will only be able to allocate one of their internal ip to that port, and the others won't be able to connect, right? How does this work? I mean, I use many softwares like msn/skype/(some games)/firefox that do not need portforwarding/rinetd. Yet they work. My housemates(other people on the lan) use the same softwares, and it works fine. There's no clash/probs watsoever How come these run fine?
Anyway, back to my issues. Given I have no knowledge about how the above work, I was wondering whether there was a way to host a vb .net server application on an external website (external to my house) so that I might *avoid* the above mentioned problems, and to what extent that would be a sound solution.
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Mar 21, 2012
I am using the following code to fetch html source website.
private string Extract_Source(string url)
{
string output = "";
System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);
[code]....
It can fetch source properly but the problem is it fetch website source based on server from where script executed (i mean where website hosted), but i want to fetch content based on client information (ip etc)
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Aug 10, 2011
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.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.
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Aug 26, 2009
procedure to create a FTP Server and Client program in VB 2008 with sample code?
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Nov 4, 2010
I 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.
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Mar 4, 2010
I am trying to create a tcp server, and from I have read I should create a new thread for each connecting client. So This the code I have in my listener thread. I get a error and do not really know how to do it.
While _ListeningStatus = True
'Dim Client As TcpClient = TcpListener.AcceptTcpClient
'If Client.Connected Then
'Dim ClientThread As Thread
'ClientThread = New Thread(AddressOf New ThreadStart(AddressOf ClientThreadProcess(Client)))
[Code] .....
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Jan 22, 2012
I have google it but I couldn't find the answers. So basically I want to make a Client-Server chat. I just want to creating each server for the clients to entered the chat room with each different server, e.g: client 1 and client 2 entered chat server 1 (just a name of a room), client 3 and client 4 entered chat server 2 and so on. How I can do that?
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Jun 2, 2010
I'm not even sure where to start. I would like to create something like the ADO DataReader but that works in a TCP Client/Server scenario.Basically, in the TCP Client, I want to be able to call a certain command in the TCP Server which will return a DataReader like object, which I can then iterate through such as:
while dr.Read from the client. In each loop, I would parse out the various fields as in a normal DataReader.The reason I want to do this is to gain the inherent efficiency of the DataReader object since it doesn't first load ALL of the data. To my understanding, the typical TCP Client/Server setup using streams, would first load all of the data on the server, then transport ALL of that data to the client for processing. I want to avoid that, and just stream the data as the client requests through the Read() command which means the connection will remain open to the server while the Read() command is being issued by the client, or until explicitly closed by the client.
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Oct 22, 2009
Im thinking of making a really user friendly tcp drag and drop tcpclient/server like winsock.
[Code]...
How would i create this for my toolbox, but use sockets with this item. or can it be as flexible as socket?
How would i do this? Would i need to add more or create a brand new socket with my mini drag n drop Client/Server Ex: MySuperEasyClient.ASCII.EncryptData.SendData(textbox.text)
ps: What would this be called? TCPClient/Server or UDP?
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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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Feb 24, 2011
In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code:
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Oct 26, 2009
i'm newbie in this programming..i need some references or a starting guide to build an sql server and vb.net application.
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Jul 16, 2009
I am creating small application (desktop search engine) which uses sql server as back end. Sql server is used to store huge data using indexing (for quick search). Is it necessary that client should have sql server on his machine to run the application? I don't want to install sql server on client's machine, because my application is just a small utility.Is there any other way so that I can store huge data using indexing?
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Mar 20, 2012
I have two tables as follows:
Customer | Product
------------------
A | Car
A | Bike
A | Boat
[Code].....
If I use a normal JOIN then I get a list of friends for every separate product. I just want the two lists once.
The output lists with '-' need not be table cells, they can be <ul>s.
How can I achieve this? I would like to bind to ASP.net GridView. Should I try to do it all in one query, or use multiple queries and somehow add them both to the same Grid?
Each row actually forms part of a long report. Essentially each row of the report contains Customer ID, a bunch of other fields which match one-to-one with Customer ID, then the two lists for each Customer ID I described. Perhaps I can use a separate query for each list, then manually add each list to the grid on RowDataBound or similar?
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Jun 4, 2012
I have wrote an Application for a organisation and they had let the app run in their lan using Samba, it worked perfect. Now they want to work over the internet.The Problem is that I have written this app with Sqlite, that means its currently working so:They have a exe and the sqlite dll and the sqlite database on their samba server and they connected a network drive on their windows pc to run it. So that means every pc is writing over samba to the sqlite database.
I tried it over the internet, but like i thought sqlite is a local database and its very slow, even if the ping is under 50ms. I could create a tcp server, that handles all and writes all to the sqlite database, but I have already written around 20.000 code lines for the project, so that would be not the best option for the lazy me. I have used only one sqlite class in my client for querieng, so I thought that it could work without much work, if i would replace the sqlite database adapter with the mysql database adapter, since sqlite has nearly the same syntax then mysql.
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May 9, 2009
how to create a client/server... But I couldn't... I don't want anything fancy. Just want the client to send the server 4 numbers, depending on the user's choice; after that, the server would turn off the pc, restart it, etc. It all depends on the number received. Is there a rather "simple" way to do it? If it's not to much trouble you could use Atheist's example. (Btw I don't understand the code and, yes, I've checked on [URL])
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Jun 27, 2011
Hey 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]....
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Nov 30, 2009
1. Does someone know how to install Windows Mobile 6.5 SDK and how to get a Windows Mobile
6.5 emulator, like the 6.1 that comes with VS2008?
2. Planing to develop a server application that have a Windows mobile client.
I would like to pass commands to the server app on a server that trigger some event. Both made with VB2008. The WM65 client sould communicate on wifi LAN/TCPIP like a normal PC. I have never develop a client/server solution so does someone have links to some tutorial or tips on this. and/or Windows Mobile developmed in VB2008
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Nov 20, 2011
I'm developing a web application that requires the user to log in using forms authentication. inside the webpage you need to download a desktop application that requires to login to the same system too. Is there a way to transfer the current logged credentials from the web application to the windows desktop application without need to login again?. Both applications shares a Login object from an vb.net interface.I tried to save the IP address in the Database but that don't work for me because the website needs to be accessed inside and/or outside of the company and the user cannot login twice in different machines.
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Jun 4, 2011
i am creating a client server application using vb.net with odbc as my data source to sql server 2005.send me a code that will enable the application running on a client machine to connect to a remote server.the application is to run on LAN and other client machines are on same domain.
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May 27, 2009
how to create a uninstall command for a Windows-based application in the Application Folder when creating a new setup project in visual studio 2008.
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Nov 8, 2010
I use VB.NET for a Windows application.
How can I find out if the application is now running on a server or client (programmatically)?
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Jun 3, 2011
i currently have a project. The application created in this project will be located in a server, and some machines can access this application at the same time. The problem is, i don't know what's needed to connect that application to several machines. I know how to build this application and run it in a single machine, but i have no idea about running this on server.
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Jan 15, 2012
I made one client-server chat application using vb.net. I want to know how can i change the form/icon color when a client sends a message and vice versa.
for eg: like in yahoo messenger or msn messenger,etc, How i user knows when he receives an message.
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