i have this code
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I want If A.Text = (detline(0)) the program show a msgbox (OK this) and after the msgbox to cl;ose the file and exit from soubroutine When the pointer reach the FileClose(ReadFile) i receive in Catch When an Err.Number 13 WHY??
How would i check to see if a file exits on a website before attempting to download it?Also in my code ive enclosed the instructions in Do loop and if the file doesnt exist i want to skip the code and loop to the next file.
View 6 Repliessometimes, when I use Form.close() when debugging my program, although the form is closed, the application is still running. I noticed this behaviour when using the msgbox function.
View 3 RepliesHow do I exit from the recursive loop from the code below. I would like to notify the end-user to select a checkbox in a msgBox before I exit the loop.
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If i start a BackgroundWorker or 2 then after some time goes by and i've done things on the main thread what happens when from the main thread I call:
Me.Close?
Application.Exit?
End?
Also if I spin of a Thread: (New Thread(addressof ThreadProc)).start - or however it is, does that thread behave the same as a BackgroundWorker in the above scenarios? the real JeZteR My New Blog: [URL]
In a program I'm working on, I want a "Loading..." dialog to close when it can't log in to a site using the username and password provided by the user. Basically, I have the code set up right because the function it is supposed to carry out when that occurs does work, but for some reason it ends up in some really weird stuff happening. In the Loading form, I have it set to do "Form1.Show()" and then "Me.Close()", assuming it would simply show the login form and then close the Loading form. However, when this happens, the Loading form closes, and then for only an instant Form1 shows, and then the Loading form shows and Form1 closes. This happens forever until I stop the debugging, and I can't seem to figure out why. Am I using the wrong method? What exactly does Me.Close() do anyways? All I want to do is close the form and open another
View 5 RepliesI have an app written in vb.net. When I close it (I've tried me.close and application.exit), it doesn't completely close. Ie, I still see it in task manager.
View 7 RepliesI've been working on two projects, one needs to have multiple forms, but when I open one form, it needs to close the sender.
But, when I try it, the program exits! I don't want it, I just want to close the form, not the app.
I tried the 'Form1.Hide()' too, but it doesn't sound good to me. There is other approach?
I have an VB.Net Console Application running and I do not want it to close when the user hit the ENTER button, rather I want it to close when they type EXIT and then press ENTER. What should I do?
View 1 RepliesI am trying to make my form when user clicks on the exit button it will go to the tasktray bar. But when right clicked it will exit the application. How would I do this? I have a ToolWindow
View 3 RepliesJust curious on what the difference is between the "Me.Close" and the "End" code for Visual Basic in terms of writing a Exit Button?
View 13 RepliesI am using Visual Basic 2010 Express and attempting to get information on how to Open, Close, Read and Write a disk file in Windows using VB. I have attempted to use help on the home page of Visual Basic 2010 Express with no results. It does not give me any instruction or sample.
View 3 RepliesI have a button in Main screen, which calls A.exe when you pressed on it.
Process.Start("A.exe").
If I exit from Main, how can I make sure A.exe is closed too? Application.Exit in Main doesnt seems to work.
I am writing a VB.NET program and I'm trying to accomplish the following:
Read and loop through a text file line by line
Show the event of the loop on a textbox or label until a button is pressed
The loop will then stop on any number that happened to be at the loop event and when a button is pressed again the loop will continue.
Code
Imports System.IO
Public Class Form1
'Dim nFileNum As Integer = FreeFile() ' Get a free file number
Dim strFileName As String = "C:scb.txt"
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I'm able to read the text file but my label will only loop if I hit the start button. It goes to the next line, but I want it to continue to loop through the entire file until I hit a button telling it to stop.
I am using Visual Studio 2010..I have multiple forms and when I hit close button(red X, top-right) from any form, i want the project to close entirely.Now when I do this, this does not happen by default. I always have to click on the 'stop' button in VS for it to close.
View 6 RepliesI am trying to close my application and I have coded on the form closing, form closed events to call an exit form which asks the user for confirmation to exit or not. All works fine. When I press the X button on the winform things act different. On the main form where I press the X btn I store some user ID data that I use throughout the app. If I press cancel on the exit form that data is lost from the main form and cannot be used afterwards. So if the user pressed by mistake the X btn and then presses cancel on the exit form the application loses some stored data and many functions stop working.
View 4 RepliesIn a loop, I need to read a list of URLs from a text file, download the web page, and search for a bit of text using a regex. I used the following code, which triggers the error "WebClient does not support concurrent I/O operations.":
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In a loop, I need to read a list of URLs from a text file, download the web page, and search for a bit of text using a regex.
I used the following code, with DownloadStringAsync() to avoid freezing the UI, but it triggers the error "WebClient does not support concurrent I/O operations.":
Private Sub AlertStringDownloaded(ByVal sender As Object, ByVal e As DownloadStringCompletedEventArgs)
If e.Cancelled = False AndAlso e.Error Is Nothing Then
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I want to allow the user to exit out of a find - replace operation, but I also need to block input during the operation, so I was using this Declare Function BlockInput Lib "User32" (ByVal fBlockIt As Boolean) As Boolean Private Declare Function GetInputState Lib "user32" () As Int32
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how to exit out of the Application.Do() as i am hanging in that .Here is a sample of my code.
Imports PDFCreator
Imports System.Windows.Forms
Public Class Form1
[Code]....
I'm currently in the process of building a text editor type program, and have run into a brick wall. I haven't done VB in years, so I may just need a little reminder on some things. I have coded everything so far as far as opening files, saving them, changing fonts, colors, etc. However, I'm looking to add a Close button to my menu strip that will just close the currently opened file, and not the entire program, while also ask the user if he/she would like to save before closing the file, and then if they select yes, it will show the save dialog, and if not, it will go ahead and close the currently opened item.
View 2 RepliesI'm using VB.Net's Excel component to read Excel file, but the performance is totally slow, since it has to loop through cells to get values. Reading a file containing one sheet with 1162 rows and 105 columns (which is small size compared to my general requirement) already costs more than 5 minutes.1. I want to ask if any of you have suggestion on reading such an Excel file with better performance, except OleDB, cuz most compies here have vesion problem?2. Is it normal that it tooks a long time for Excel component to read Excel file, or is it that I implement the code in a wrong way?
View 7 RepliesI would like to terminate a do until ....loop when future value is greater than 1000 without using a Exit or Continue statement.
Do Until inti > intMonths
decFutureValue = (decFutureValue + decMonthlyInvestment) * (1 + decMonthlyInterestRate)
If decFutureValue > 1000 Then
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I have a folder that contains about 100 txt files with information in each file.I'm trying to figure out how to loop through each file in the folder, and add the text to a string.I've pulled this off MSDN's site, but it doesn't seem to read "each" file but just one.
Dim path As String = "c: empMyTest.txt"
' This text is added only once to the file.
If File.Exists(path) = False Then
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I'm transfering data over TCP/Sockets with the .Net (System.Net.Sockets) I am using this code on client side :
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I want to make it so when cancel is used it exits the loop but I need the Input as a decimal.
Do
txtItems.Text = intCounter.ToString
intCounter = intCounter + 1
msgInput = CDec(InputBox("Enter Item Price", "Item Price", ""))
decSubTotal = msgInput + decSubTotal
txtItemPrice.Text = msgInput.ToString("C2")
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I have a list view with 2 columns and I want to move the data in the 2 columns to another list view but here is the problem. The other list view hass 4 columns. the frist 2 columns are for the first record I selected and the other 2 columns are for the second record. It will be like vs, like if you have record a,b, c,d and you select record a and click the button awill be on the first 2 columns and if then you select record c and click the button it will be a vs c but then I will need to be able to to that with the records remaining on the first listview. Here is the code that I try.
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Actually my problem is to stop a loop when i click on stop button. example:i have two buttons 'start' and 'stop' in start buttom i wrote a for loop as
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I was looking though a book on Visual Basic .Net and came across a little password-protection program (A very simple one).
Problem is, that this was written for VB6, not the 2008 version, so i did a little editing as shown below:
'Start by declaring variables
Dim Password As String
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The only thing i am having difficulty is with the line at the end. Even though it has been told it needs to close if more than three attempts are made, it keeps trying to create a fourth attempt and is fighting against the If statement.How do i get the inputbox to close without it conflicting with the loop? I thought maybe an End If statement at the end would help, but it doesn't.
I'm using VB.net from the Visual Studio 2008. I have a large number of PictureBoxs in a form. They have been created sequentially, Pic1, Pic2, Pic3, ... Depending on how I access this form, I want to turn off a number of them. I'm working with the code below.I can put the name of the object into a variable, Pic, but am still unable to hide the object names in that variable, Pic.Hide().
Dim StartNumber As UShort = 1
Dim StopNumber As UShort = 33
Dim Number As Object = 1
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