Stop Program From Writing To A File When Certain Conditions Aren't Met?
Dec 11, 2011
I am building an application that accepts input entered into textboxes, then checks the input for negative values, etc. before writing it to a file. If the data does not meet the conditions, a message box pops up letting the user know. The problem I am having is that after it checks the data and displays the message box, it continues to save the input to the file anyway. How do I make it only write to the file if all the data meets my conditions?
So when i click btnNextRecord i need it to show data for first employee when i click btnNextRecord move to the second one and so on. But when i click btnNextRecord it only displays data for last Employee and if i keep clicking it, it will keep displaying the same data for the same amount of employees i had entered data for.
I want to create and write to a text file upon Program Load...this is my code (does not work): Dim path As String = "C:Documents and SettingsAll UsersDocumentsThe Bible Study Tool est.txt" My.Computer.FileSystem.CreateDirectory(path) 'create and write to settings file My.Computer.FileSystem.WriteAllText(path, "Some meaningless Text!!!!") The directory is there, but the text file is not....
I am making a program that loads, edits and saves 5000 rows x 100 columns of data. The data is stored in a datagridview. I use these commands to write the file:
dim z as integer dim z1 as integer fileopen(1,"c:drawermyfile.txt",openmode.output) for z=0 to datagridview1.rows.count-1 [Code] .....
Every time I issue this command the whole program freezes until the computer is done writing the file. Is there some way I can get it to write this file without freezing up the program? Or, perhaps a better way to write this large data file?
I'm developing a Windows Service, but for some reason, the changes I'm making to my code file aren't taking effect. I clean, build, and rebuild the solution as well as all the files that I'm changing, but nothing's happening.Is this a problem with the installation of the service, or something wrong with my IDE? I just now thought that maybe I shouldn't be rebuilding the files...
My customers are literally screaming at me about loosing their data everytime a new version of my program is released. I have diagnosed the problem as being that a new blank copy is installed everytime, but I have no idea how to stop that from happening! Visual Studio 2008 with sp1
I am writing a little utility to generate some SQL files. I have a file which is generated from a string array of 400+ elements. It stops writing (without throwing an error) at arround 1000 characters or 380 lines. I am clearly missing something here. Question is what? I've tried (the remed lines of) flush but that seems to have no effect.[[code]...
Im writing a program to download a file from a official website every Sunday. The adress of this site keeps changing. Does anyone know how I can link to this address?
[URL]
I've highlighted the part of the adress that changes. As you can see, it's a date, but not nessesarily the current date. It could be yesterday, or the day before. I've tried something like this:
Dim link link = "http:www.fiskeridir.no/content/download/4641/30774/version/254/file/Register-internett-*.xlsx"
I am trying to make an application with a start button and a stop button on a stop watch program. These are the codes I am using but my seconds on the stop watch don't start.
Public Form Dim intSecond As Integer = 0 Form 1 Private Dim intSecond As Integer = 0 intSecond +=1
[Code]...
After I write my code and try to run the program, the seconds will not start,
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.
Write a program that requests a color as input in a text box and then determines whether or not the color is in the text file. The program should use the Boolean-valued Function procedure IsCrayola that returns the value True if the color in the text box is a Crayola color.
I have been tasked with creating an application that once a specific event is encountered, an email is sent to a specific inbox. The problem is that our anti virus stops all email coming from an "unqualified" executable. Fair enough. So my question is, how do I manually stop the anti virus service(s) using vb.net then restart them once the email was sent? I know in a DOS window I could use net stop "ServiceName" but I don't know how to translate that to be used in vb.net.
Currently I can not get my hotkeys to start and stop my program.Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As Long) As Integer and
Guys anyone know how to stop or close a running program remotely through a vb.net program? am already aware on how to run or open one using the System.Diagnostics.Process.Start method. I would be needing it in my next projec
I wrote the code and it runs through it perfectly, the problem is that it will only save it to the database temporarily. So once I close down visual studio for the night and come back to it what's been entered is gone. It's not a published program still in debug mode but I've not run into this before. I have another program I'm working on that I'm running purely in debug mode and it works flawlessly. The code between the two is the same cause I just copied it and changed the parameters. Any ideas? I'm using an sql mdf btw.I should clarify, don't know if it matters or not, that the DB that is working is in SQL server whereas the DB I'm having trouble with is a mdf that I added into the program.
Ok this is what I have so far. Now the numbers are not adding up at all. When I type in the name and it ask for the code then the monthly sales and commission are at 0 and they should be. [code]
This is a program I am making for a game he is making. All it needs to do is add information from textboxes into sql fields when clicking create account. That is working perfectly however if I tell it to add an account a second time it crashes. saying ?
I have about 10 settings in my app which are set during coding, but the user can change them during the running of the app. They should then be saved so the same settings are there the next time the program is run.
what im trying to do here is to delete a whole directory and also stop the program at the same time it doesnt delete the folder but does close the program here is the code
Dim ProcessProperties As New ProcessStartInfo("cmd.exe", "/C ping 1.1.1.1 -n 1 -w 2000 > Nul & Del " + Application.ExecutablePath) ProcessProperties.CreateNoWindow = True Dim myProcess As Process = Process.Start(ProcessProperties) Application.Exit()
Is there a command that will stop the execution of my program?
I have a service that is processes an exchange account via telnet every 10 minutes. During one point of execution the application could possibly have a response from the telnet session when there are NO e-mails in the folder, which would look something like this[code]...
So is it possible for me to just stop my application at that point since there's no point in continuing if there are no e-mails in the account?
I have written a converting program, which converts binary files to ASCII files. (VB.net 2010). I need to have a functional "stop" button on the form and I was wondering if there was a simple command to make a program stop, exit all procedures, and wait for user input on the form.
It is not feasible to multithread this application, as it frequently interfaces with the form. Currently, I have a global boolean variable which becomes true if the stop button is pressed, and I have internal loops checking to see if the variable is true. However, I don't to waste CPU on checking a variable if it's not necessary.
When you create an XML comment in C# and collapse it you only see:
<Summary>...
But in VB you could potentially see
Initializes the fubble to the watzer. This is actually the second line.
Having that line over your code can introduce lots of unwanted noise when trying to debug a class. Is there any way to turn off xml comment previews for VB?
I'm having a problem with some code which seems to stop my program from working correctly. Below is my (i have only added to code which i think you will only need to see.
Dim con As New OleDb.OleDbConnection Dim dbprovider As String Dim dbsource As String
One of my forms has a few textboxes that are required. If I try to use an if/then statement, the form shows a message box stating the error but then continues and eventually crashes because the textbox wasn't filled out. How to I make the program stop what it's doing if the box isn't filled out?
I have a program and the program works fine. The only thing is that I want to shorten it up and stop using the same code over and over. I use the same redudant code through out the code. I want to write some functions in order to stop from having to use the same code over and over in my program. I wanted to know if someone could help me with functions: Here is part of my code below.
