Program Crashes Because Of This Piece Of Code?
Apr 16, 2009
my situation is this; I have a search button which searches records with Surnames, when two or more records have the same surname, the first record appears and 4 navigational buttons appear, they are 'Go back to first record' (btnFirst), 'go back one' (btnPrevious), 'go forward one' (btnNext) and 'go to the last one (btnLast)'. All of these work properly except for 'go back one' (btnPrevious). When I click this and the record is currently the first one, the program crashes. Its probably a very elementary mistake but I can't figure it out. Here is the code for btnPrevious
[Code]...
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May 18, 2009
Having read the rules I don't have much code to show apart from these lines I want to have executed just before the program or a form closes.
If My.Computer.FileSystem.FileExists("File.file") then
My.Computer.FileSystem.DeleteFile("File.file")
End if
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Nov 22, 2010
I am trying to make a blackjack program and I need to execute a different piece of code each time a button is pressed by the user.
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Jun 21, 2012
I spotted this ina piece of code I am trying to decipher, and it made me giggle...
Public Const INFINITE As UInt32
Infinity in an unsigned 32-bit Integer.
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Mar 3, 2009
On this piece Of code I want to multithread, beginning where the for loop takes the data out of the array arydata. The threads would all do the same task.
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Aug 6, 2009
I am translating a piece of C# code into VB.NET using online convertors..[code]The VB.NET translation is not up to the mark and gives compiler errors Any VB.NET expert who can suggest what to change to make the code compile?url.
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Feb 16, 2009
How can I get the time that a piece of code toke to execute ?
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Jun 6, 2012
I wrote this VB program to be able to throw a device we developed into programming mode where we use an ATMEL Flip installer to upload new firmware. I can program one device after another running the application off of Visual Studio Express 2010 or Visual Studio 2010, but when I go to publish this file and run it on another machine, it becomes unstable and crashes after each upload. On those same computers if I run the raw unpackaged program under Visual Studio Express, the system does not crash, and I can program devices repeatedly.
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May 30, 2010
I am starting to debudg my application in depth, and have realised that at certian points, if you close what appears to be the only open form, the application stays open. I was just wondering if there exists somewhere, a list of all open forms that you can view during debugging?Alternatively, is there a quick piece of code to close all non visible forms?
For Each frm In Application.OpenForms
frm.Close()
Next
Doesn't seem to work
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Dec 15, 2011
I have a standard scoring algorithm but I need to help on a piece of code to only execute the scoring algorithm at certain times.I want it to be triggered by dates, but the problem arises if the program is used after 2 (or more) dates have passed, the first date will not be added as the second date is the newest and therefore the one that triggers the scoring algorithm. - The scoring algorithm gets the scores for that week, which are stored in a text file.
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Apr 1, 2011
I have a piece of code which loads either french or english text and 2 link buttons that allow to switch between.
<%
if publierFR = 0 Then
if publierEN = 0 Then
[code].....
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Nov 25, 2009
This is a very simple piece of code involving threading and events. I am just refreshing the old grey matter as I find myself off work sick for a period of time.
Code:
Imports System.Threading
Imports System.Threading.Thread
Module Module1
[CODE]...
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Oct 15, 2011
Public Class Form1
Private Sub Button1cmdRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1cmdRun.Click
[Code]....
Whenever I run the program and I enter text into the label the program crashes. When I type in a negative number the message box works.
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Oct 14, 2011
Public Class Form1 Private Sub Button1cmdRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1cmdRun.Click ' Variable declaration & initilization Dim hour As Integer Dim minute As Integer Dim second As Integer ' Validation If IsNumeric(txbTotal.Text) And txbTotal.Text Then >= 0 Then ' Total number of seconds Dim totalSeconds As Integer = CInt(txbTotal.Text) ' Calculation hour = totalSeconds 3600
[code]...
Whenever I run the program and I enter text into the label the program crashes. When I type in a negative number the message box works. A number like -45 worked and a message show appeared, whilst a string like 'bob made the program crashed.
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Aug 15, 2011
I am trying to insert a piece of html code into a web browser control in vb 2010. i have tried the webbrowser1.documenttext function but cant seem to get the browser to run the html code.
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Jan 7, 2010
How can I execute a piece of code at set intervals without using functions or timers?
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Jan 19, 2011
I want to build a VB program that will go to a web site and pull out a specific piece of data.I am using VB Express 2010 not sure if it belongs in this .net forum.I am successfully getting to the website using WebBrowser.navigate()The data is provided to me in XML format and I am told that it is ready to be retrieved. They tell me to use XML Parser.When I go to their web site I see the data I need to pull out there is a column with tags in front of each piece, the piece I need is between <Vr0> and </Vr0>.I have no resources other than the net currently I do have a dummies book ordered but will be at least next week (at the earliest) before my first book arrives.Can you explain how I can sort through the data and pull out the data in XML format on a web site?
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Apr 25, 2011
I am using VB.NET Framework 3.5 . I have a very complicated program with over 40 forms and 100s of lines of coding. Earlier today, this program worked perfectly. I decided to change the Assembly Name from APA to Salamander. I do not get any errors and things seem to be going fine. Upon the next debug, the splash screen loads fine. (I am using a timer to proceed to the main form, not the inbuilt splash screen setting as I found it to be more reliable). However, when the main form loads, none of the pictures (resources) load and it exits itself immediately yet no errors appear at all. I think it might be to do with the .resources file but I really don't know. As I only started Visual Basic less than two months ago I'm not sure what all the files other than .vb files actually are.I really don't want to have to completely rebuild the program as my release date is in five days and as I am still at school I don't have time to complete it on top of homework. I have tried changing the assembly name back to APA again but it still does not work. I am completely stumped.
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Apr 21, 2012
I have VS 2011, and I put around 10 settings that contain around 1500 lines of code in each setting + 10 images in my resources.[code]...
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Nov 10, 2011
I have an application that I have built that used a winsock control to send commands and receive data from a wafer map program. I have been converting the winsock to use the built in sockets in .net and so far things have been going fine. I have been able to get it to connect and send out a command to the wafer map. Yet I have having a troubling error that I can't resolve.
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Jan 7, 2011
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 ?
[Code]...
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Apr 7, 2009
The application is like a client for a game site. I made it for the fan site i am apart of to help the members of our community.The application crashes when you click play on the game at the site. The game site uses Java all games are made in Java so i am guessing its a conflict with the Java, if you can help me it would be great i will attach a copy of the application for you to look at if you need.The password for the application is "cr2pafut" user name is anything you want it to be.url...
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Jun 11, 2009
I have a translator and i have everything working, but if you put a space at the beginning of the first word typed, or you have more than one space between words, it crashes and give me "System.ArguementOutOfRangeException"
the code is
Private Sub btnConvert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnConvert.Click
Dim boolhpunct As Boolean = False
Dim strpunctuation As String
[code]....
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Apr 27, 2010
I've just finished creating a program in VB 2008, and when I run it, the opening form will load but when I try proceed I get this error:
[Code]...
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Oct 14, 2011
Public Class Form1
Private Sub Button1cmdRun_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1cmdRun.Click
Dim hour As Integer
Dim minute As Integer
Dim second As Integer
[Code]...
Whenever I run the program and I enter text into the label the program crashes. When I type in a negative number the message box works. A number like -45 worked and a message show appeared, whilst a string like 'bob made the program crashed.
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Jul 26, 2011
the error code points to a Stack-Overflow I can not pin the offending code down because the software works faultlessly on some computers after deployment but on others the crash occurs when a Gantt chart gets redrawn after changing activity dates. All the computers are situated on the same LAN and connect to the same SQL server 2008 database.The application has been developed with Visual Studio 2008.
I used the same install disk on all the computers and they are all using the same date/time format. The crashes occur on both 32 - and 64 bit machines.
The error message:
Stopped working
Problem signature:
Problem Event Name: APPCRASH
Application Name: Pfisterer Project Manager.exe
[code]....
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Sep 24, 2007
I am using VS2005 VB.NET on a Vista duel core processor machine.Completely updated from Microsoft.I have create a communication program that talks to a sensor we build.The software seems to work fine most of the time. But it keeps crashing randomly.
Here is one I get.
Description:A problem caused this program to stop interacting with Windows.
Problem signature:
Problem Event Name: AppHangB1
Application Name: LPU2428_VS.vshost.exe
[code]....
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Mar 21, 2011
I write text to a file using StreamWriter as shown below several times a second. The problem I have is that sometimes these files are left blank after my program has crashed or the computer has crashed. I've done several searches on the internet without any results other then writing to a second file, copying over the file and then deleting the extra file when done. If this method doesn't have any error modes it still appears to be less then a beautiful solution. (What happens if the computer crashes when writing over the original file?)Is there a more secure method for writing the text file that doesn't leave it vulnerable? This happens way too often. I never find errors related to file writing. I really want this code to be reliable enough that I could just pull the plug on the computer
Try
Dim mSW As IO.StreamWriter = New IO.StreamWriter(countFile, False)
mSW.WriteLine(CStr(totalCount))
[code].....
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Mar 25, 2011
I am having Beta Testers go through my program. For some reason, the help file doesn't open but crashes the program. But it is in the program folder... I'm not sure why it is having a problem finding it.I created a try catch format because it seemed to have a problem at one point between looking in the 32 bit program folder or the 64 bit even though the program itself is in 64 bit...[code].....
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Apr 13, 2012
my program crashes when my datagrid view is empty.
It crashes at this
M = Allow_grid.SelectedCells(1).Value
I know its because the grid is empty. when the grid is empty it has a "-1" as the selected value index right?
Is ther a way to test if the index is "-1".
if grid_selected index <> "-1" then
M = Allow_grid.SelectedCells(1).Value
else
[Code]....
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