i have nearly finished my game matchmaker now and im stuck on one final thing... this is how the app works...form load -> read line by line from a text file -> query each line(witch is an ip) -> display the data in a line in a listbox... this loops round for each line(ip) in the text file and make a new line in listbox each time... all works just right im very happy... now for the problem im having...
while this loop is running if the query finds an ip that is not online (game server is not up) it just stops and dose nothing atall BUT if i make a seperate query for say 2-3 ips with the ip hard coded so it takes the loop out if an ip is not online it tells me server is offline so is there anyway i could make this do a timeout or something... like if the server dont respond withing 5 seconds it closes the connection to that query and moves on?? my code is below for all of the above..
I have a user app written in VB which up till now has relied on winsock to connect to another device we have. The user app logs onto the device and then send / receives status reports from it which are used to set the controls on the apps forms.
This has all worked well for a long time but I'm now looking to move away from Winsock as I know it's not 'the right way' to do things and I also need to be able to send non ascii characters between the app and the device it's connected to (implementing multi language support).
The issue is with Winsock it would simply throw the DataArrival event when a message was received and I could then process the message and act upon it. When using a TcpClient socket connection I'm running into problems as all responses are on the socket thread which means I can't simply change controls on the main form without using the Invoke check.
What I want to be able to do is have the thread running the TcpClient simply alert the main form thread when it receives data and make that data available to the main thread so it can start processing it and triggering all the other functions etc required (these also interact with the Form). Whilst this is happening the TcpClient monitors any further messages and sends response messages as requested from the main thread.
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.
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.
I have an application that takes a series of reports and sends them as attachments in an email to a specified group of email accounts.
When I run the Java version of this using apache commons and the same setting, the email is sent. However, when I run the VB.NET version of the code, it fails on my local machine and on the client machine.
I have a VB.NET web application running on a server that uses similar code. I tried that code locally and it fails. Yet, the web application is working perfectly.
Why is it that the Java application can send the email, but the .NET application cannot?[code]....
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.
I have two arraylists. The JobArraylist gets adresses from a database table and JobIDArray Gets the ID for those addresses.I'm populating a Combobox with the JobArrayList which is working ok.When I select a an address in the combobox I use the sectectindex to get the AdressID from JobIDArray.My Issue is when I have duplicate addresses the JobIDArray always returns the the ID for the last Address. not the select one.[code]...
Public Class frmBroadwaytickets 'Defining the cost per ticket Const _cdecticketprice As Decimal = 153.5D
[Code]....
My btndisplay cost works, but my btnexitprogram does not close the application when clicked. I've ensured the button is correctly named and enabled. But when I click it does not close out, I use this simple code in other programs and it works.
I need to import a text file into a SQL Database.Beside the button import, I have a progress bar on the form The text file has almost 300.000 records and affter some time it appears on the title bar "Not Responding" and progress bar stops updating.I've reading on forun something about Threads and background processes, but I don't want beleave that for a simple progress bar to work it must have such amount of code.simple way of import all those records.
I am new to vb.net programming. I am trying to connect to a device using TCP/IP.I am trying to send a command "Z<CR>" where Z is a character and <CR> is a ASCII value of 13. How can i do this in one statement?
I have written following code, but my program stops responding at .read statement:
I am trying to write a program that will automate a process that goes into a website, and then checks whether certain file has been updated, every 30 minutes. Everything works fine so far, except the annoying popup: when the program attempts to sign in to the website, a popup dialog box appears and asks the user to validate by clicking "OK" before signing in. I can either use my mouse to click on the "OK" button on the popup, or hit the "Enter" key to kill the popup and then proceed...
I have a block of code that has a test for a variable I use. The Code doesn't respond correctly when the variable Cph which is declared as a double is at 4.2.
HTML If Cph < 4.1 Then ElseIf Cph >= 4.1 And Cph < 4.2 Then
I've recently tried to "publish" my vs2010 VB.net app, and ever since then, that particular program isn't working. It's taking minutes to build where it used to be seconds and if it enters a breakpoint, vs2010 quits responding.I did "repair" vs2010 and that didn't help. I also ran a program I was working on previously and it builds and debugs just fine, so I know it's not VS2010, but has something to do with the solution that I "published". Prior to publishing, everything was running just fine.Is there anyway to undo whatever action or event I somehow triggered?
So I have a .NET web service running and when i debug locally and run the service local to my machine a request takes ~4s. However when i push the project to my web server, the exact same request now takes ~1m. I feel as if the request should only take ~5s. I am not sure what I have set wrong. Here are my fiddler results:
I have decided to create Bulls and Cows game for my project. I have been checking for it's correctness. But it behaves bad in some cases. Like when I have already guessed the word it doesn't respond right. This happened rarely but I can conclude that it still is not right. I get words from a notepad file randomly.
Some initializations dim str as string str = TextBox1.Text str2 = str.ToCharArray() Dim str3(100) As Char Dim str4(100) As Char Public Sub checkbulls(ByVal guess1 As String) [Code] .....
I have completed a small VB console app to read data from a BT card scanner. From within the VS2010 developer the app runs as desired, capturing the data and displaying it on screen with console.writeline().When I compile and execute the code either from the debug bin version or the release bin version, the app only captures the first few bytes then closes. All the code is within the Module1 Sub Main. Is there a compile setting or other property that I need to adjust?
I'm using vs2008 programming in vb.net. I'm currently working on a project that reads miscellaneous text files and imports data into a sql database accordingly (Reads line, imports, loops until finished). There are 75k-150k imports to do. I tested it out the other day before using a progress bar, it takes about 5-10 minutes and works fine.
The issue I have is that while importing, if you click anywhere on the form, it will say not responding and will continue to import, but users using the program might be mistaken and think the program has locked up. I thought a progress bar would solve this, since it is responding back while the imports are going on in the background. However, the progress bar works, but as soon as you click anything on the form, it again says not responding and the progress bar stops moving (the imports will complete however). How can I isolate this import process so it can do this in the background, but will not affect the rest of the program?
In the application I'm working on I use F1 and also a right mouse click to close the application since the graphics display full screen and there's no control in the upper right corner to close with. I use a good number of different keypresses to control things and everything works fine. When I switch away from the form that the applications starts in to a different form I'm not getting any response from either a KeyDown or a KeyPress event. Maybe someone knows what's going on. The ButtonClick and MouseDown events are responding just fine but for some reason the KeyDown and KeyPress events aren't. Below is code for one of the Forms that is unresponsive in this way. [code]...
this is my first post and my knowledge of Visual Basic is still in its infancy (this is my first real attempt at app that is any use) however I am trying to develop an application to delete user profile and home directory folders.
I have the application working but the problem is with the application hanging (I understand this to be due to it running as a single thread and the main form gets ignored while the deletion is occuring) during the deletion process, I have tried various ways to resolve this such as starting the delete procedure as a new thread but cant get it to work without the hang.
This code is put within a timer that executes every 3 seconds. ( instead of a while loop ) Whenever I run this code, the program takes time to upload the files in the folder to the ftp server, and it becomes (not responding), but it doesn't stop working, after the "not reponding" message, it reponds, but then it becomes not responding.. this is making the uploading process very Slow. I've heard so many things about application.doevents() and Threading and etc.
My mdi VB.Net application performs a long operation on some data. Ideally I should use a separate thread to prevent the dreaded "Not Responding" message.My problem is if I use a separate thread users then have the ability to click on other controls in the application which can directly affect the operation my background thread is working on, creating an error.
Is there any way to prevent all the mdi windows, toolbars and other controls from receiving mouse clicks and keyboard input during my background thread's operation?
Or is there a way to clear the message que before performing a Application.DoEvents?
My application reads a table while updating, adding and deletting certain records automatically. Since this process often takes a while (about 2 minutes), the title bar of the application shows the message (Not responding) with the application title. This message disapears when my program finishes and closes the tables.Is there a way to prevent this message from showing? It does not affect the functionality of the programam but I dont want the client to think the program is faulty.
I have written a very simple program to simulate the operation of some electrical relays which respond to buttons pressed on a form.The important thing in the program is the pick and drop times of the relays so I use about 40 timers to simulate the operation of the relays each stimulated either by another timer or the operation of a mousedown operation over an area of the window which has a GIF background.
The program works great when simulated within VB2010 Xpress but when I publish and install on either of my 2 laptops it freezes and does not respond to the mousedown procedures. It seems slightly better if I don't enable XP visual syles but still does not respond enough to be used. I am running 12 procs each time a continous timer runs out but altering the value of the timer does not make any difference. I've also noticed if I minimise the window and reopen the window it does move on slightly but still never responds to the mouse.
Also the timers in the program for the relay times seem to work at strange values and not those set sometimes? It seems to work OK on my main PC if I install it
