VS 2008 Creating A Custom TcpDrag N' Drop Client/Server?
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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Aug 26, 2009
procedure to create a FTP Server and Client program in VB 2008 with sample code?
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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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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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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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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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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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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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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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Aug 18, 2009
Im using the code from [URL] as a starter, most of the code is the same. the chat system works fine but on the client a added a disconnect button "clientSocket.Close()" and as soon as i click that i get errors, on the client, this is the code...
Private Sub getMessage()
For infiniteCounter = 1 To 2
[CODE]...
And this line...
serverStream.Read(inStream, 0, buffSize)
gives me "Unable to read data from the transport connection: A blocking operation was interrupted by a call to WSACancelBlockingCall."
Now im talking the server, after the client clicks disconnect or closes by task manager, looses connection, etc the server crashes and gives me.
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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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Aug 10, 2009
Multi-User Chat Program (Server & Client) with Main Server?
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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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Apr 6, 2009
Is there a way to create a custom cursor when doing a DnD operation? For example, if I'm dragging a button control I would like the cursor to look like a rectangle that is the same size as the button.
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Jun 21, 2010
We 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.
[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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Nov 15, 2011
basically i just want client to say "C: emp" ENTER
then, server must reply with all its files in c: emp
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Jul 15, 2009
i have been working on a chat program Server side and client side i have most of the features i was asked to put in but then once i got most of the bugs out i noticed something the server admin could send whispers and alerts to single users but then when you try do do it on the client side it wont work so i looked through it all and found my issue the user list on the client is only a list of the names in server hash table so i was wondering how do i send the hashtable and all of its data E.G. user connection information to the client so that it can send commands to individual users like the server side can
vb
Public clients As New Hashtable()
' This subroutine checks to see if username already exists in the clients
' Hashtable. If it does, send a REFUSE message, otherwise confirm with a JOIN.
[code]....
i tried to send the hashtable over the same method used to send the user names to the client but it cannot convert the hashtable to a string so that wont work so my question is How do i send the hash table to the user from the server then display the username on the client ??
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Jul 23, 2008
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
[CODE]...
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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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Jun 30, 2009
i wan't to create a tcp client and server
Client contains 1 textbox
Server contains
dim pcdetails as string
pcdetails = "Operating System Name : " + My.Computer.Info.OSFullName.ToString + " ; " + "Platform : " + My.Computer.Info.OSPlatform + vbNewLine + "Operating System : " + Environment.OSVersion.ToString + " v." + Environment.OSVersion.Version.ToString + vbNewLine + "Computer Name : " + Environment.MachineName.ToString + vbNewLine + "User Name : " + Environment.UserName.ToString + vbNewLine + "System
[code]....
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Sep 22, 2009
i have lots of confused ideas like should you transfer files using tcp? Example: I was thinking, I connect to server from client, open file in binary, division by packet size(bytes), send first packet to server, get request if file was delivered succesfully, send next packet. If I do it this way i would need something to know/increase packet size.
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Apr 11, 2009
I'm making a program that would require me to send data between to different machines.The way i plan to do this is to have a server program constantly running on my computer.(any other way to do this?) When someone opens the Client program, the program connects to the server. The server then takes the users I.P address and Username and adds it to a listbox on the Server application. Then the server application constantly updates the list of users on the Client application. So that way every user can see everyone that is connected.Then, when the user wants to connect to another user - They select the Username from their listbox of users. Then all connections will be handled between the users = Each user is connected to the other user's Client program. Well there is the first thing i don't know how to do.The next is simply how i send the data between the users. Would i use a winsock control?Example: One user does an action. The winsock control sends the text "blue" to the other user. The other user's program's form color changes to the color blue. That's not what this program will do, but it's just an example.
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Nov 11, 2009
Is is possible for the server to give all clients that are connected to it a separate threading starting from 1-2-3-etc that will be display there username on a listview. Server can now connect to any of them by clicking on one of the items in the listview.
EX: Multi-Clients Connect to server ---> Server gives each one a separate thread starting with 1 ----> Client sends username to server -----> Server displays them on listview ---> Server can now double click or whatever on the item ---> Pulles up thread count and connects to it.
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Aug 23, 2010
i write a vb code that it can do connect to serverthe question is when i connect to the server the server have receive the connected and the client exists not found serverit shows out this warning "strData' is passed by reference before it has been assigned a value. A null reference exception could result at runtime."
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Aug 6, 2010
I have a form that is populated with specific data for each user. The user chooses this data themselves.I plan on saving this data in the application settings or via xml serialization.What I want to do, is allow users to generate a unique code for that data so that they can supply this code to others and all they will have to do is copy and paste it into their client and that data will populate for them.I could just allow users to trade XML files, but I want it to be easier than that.The form is basically setup this way;
Picture - Data 1, Data 2, Data 3, Data 4
Picture - Data 1, Data 2, Data 3, Data 4
The pictures correlate to pictures that are numbered anywhere from 0-600. The data can be any integer value from 0 - 200.
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Dec 16, 2009
I'm running several different automated processes and when I get done with them, I show the results in a form with various controls.
In this form, I use Panels, Labels, TextBoxes, and TreeViews, and ListViews to display a wealth of information.
When the automation part is done, I want to be able to log this info and save that log file on the User's PC.
I thought it would be best to make a custom file extension and then hash it with MD5.
I'm pretty sure I can get all of that done. The problem is that I'm not sure how I would load that info back into the application.
Since the log files will appear on a seperate form, I can't just load the data back into the original controls.
Would it be best to create a blank template of controls and then load the data into those controls? Or is there a way to save content "as is", controls and all?
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Dec 1, 2008
I have been reading through Atheists posts in regards to client-server and TCP client/server connection's. But how do i go about writing a program with 1 client and server where the client side creates a text file.Once the server sees there is a text file it connects and downloads it to itself or the client pushes the text file to the server.Once on the server i will read the text file and put its info into a sql db.
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