Code Runs When Debugging But Stalls In Run Mode?
Jun 15, 2011
i wrote a piece of code to write some data to a card reader, and read back from that device, filling a form with the data (after reformat).When I step through the code while debugging (using F5, F8 for stepping forward) the form is filled correctly.However, when I run the code (Ctrl-F5), the program seems to hang for about 5 sec and then throws an exception: 'Length should be >0' When looking further during debug - it seems that the program calls 2x the Sub Frm_Read_Display(). I
Imports System.Windows.Forms
Imports System
Imports System.IO.Ports
Imports System.Threading
[code]....
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Jun 2, 2006
When I am in break mode, I cannot update code.I receive message "Cannot currently modify this text in the editor. It is read only." Can anyone explain why I get this message?
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Sep 16, 2011
I'm running VB2008 on Windows 7; I've written out a ver simple piece of code:
Option
Explicit
On
Module
[code]....
When I run or debug the code, it asks for the First Number and then just completes the running of the program without asking for the second number and uses some random number. The console.readline() doesn't work either, the console window just disappears.
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Dec 17, 2009
i'm working on a internet cache cleaner.. i load the cache files in a listbox and send them to the recycle bin. in this process, the app stalls until completion and the stall depends on how many files are in the cache.how can i do this and keep my app active, not stall?
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Sep 25, 2011
I have an x86 VS2010 app running on a 64 bit machine that hangs in debug mode. Both the interpretive version and the compiled debug .exe hang. If I step through the interpretive version it runs. The release mode works fine. Doesn't seem like system memory is a problem as I'm reporting 1.8 gig free after I load the app. I've googled this and don't see anything pertaining to debug environment specific behavior. Is there a limit to what the debug .exe supports?
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Aug 3, 2009
I have code that has no output, it doesn't do what i want it to do, but i can't see any errors in it, there are also no errors in the compiler, but in debug mode there are the following errors:[code]
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Jan 6, 2009
I have code that has no output, it doesn't do what i want it to do, but i can't see any errors in it, there are also no errors in the compiler, but in debug mode there are the following errors:
A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll
A first chance exception of type 'System.InvalidOperationException' occurred in
[code].....
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Aug 12, 2010
I keep receiving an "Access violation at address xxxxxx. Write of address xxxxxx." error when i close my MDI form (and hence my application).However this error only occurs after i have created a new child form.
I have stepped through the code and found that the exception is being thrown in the Settings.Designer file (Namespace My module). This is the chunk of code that throws the error[code]...
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Dec 1, 2011
I am getting this error list when debugging my project also the project can not connect to sql server in debugging mode.[code]
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Oct 15, 2011
I use some random number generators in a piece of VB.net code to simulate Gene reproduction. It works as followed:
- I generate a male chromosome that contains 46 random chromosomes which I put in the Arraylist: MaleChromosomes.
- I generate a female chromosome that contains 46 random chromosomes which I put in the Arraylist: FemaleChromosomes.
- Then I have a piece of code that randomly picks 23 chromosomes from the female arraylist and randomly picks 23 chromosomes from the male chromosomes ( Very simple simulation of reproduction ) and put these in the arraylist: Child
- I repeat this for the second child ( Arraylist: Child2.)
- Now I have piece of code that compares these arraylist to see how many chromosomes the two children share.
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Sep 16, 2010
What is the real mode , protected mode , supervisor mode and the hypervisor mode ?
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Jun 5, 2011
I've got a vb.net 2005 form that calls a stored proc to load a combobox with eligible sales reps. There are approximately 40k sales reps available...I know that's a lot, but that's what I'm dealing with. I'm trying to figure out why it's taking this form 15 seconds to load.
Here's my code:
Want to load this in the most efficient way possible given the HUGE amount of data that my client is wanting to see.
Can you help me? :confused:
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Aug 3, 2011
I am using Microsoft visual basic 2010. I am using the following code to connect to a local access database. After the line myReader = cmd.ExecuteReader () no code runs. I am not receiving an error message.
Dim connectionString
As String =
"Provider=Microsoft.ACE.OLEDB.12.0;data source=C:UsersmikeDocumentsFCE_Database.mdb"
[code]....
I have used this method to connect to the same database multiple times in the same program without a problem I've also tried using OleDb with the same result.
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Apr 21, 2011
Having recently installed IIS Express I was hoping that it was going to make life easier for me, but I've run into a problem almost straight away.Consider the following which is representative of some live code:
Public Shared Function GetServiceId() As String
Dim principal As MyCustomAuthentication.Principal.MyPrincipal
principal = CType(Thread.CurrentPrincipal, MyCustomAuthentication.Principal.MyPrincipal)
[code]....
Running the code under the ASP.NET Web Server (Cassini) everything is fine and I can see that Thread.CurrentPrincipal is of type MyCustomAuthentication.Principal.MyPrincipal.Running under IIS Express this same line throws an InvalidCastException and checking the type I find it is now of System.Security.Principal.GenericPrincipal which is confusing as nothing else has changed.I can confirm that MyCustomAuthentication.Principal.MyPrincipal implements IPrincipal and remember this is Live code, it is currently deployed and working.
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Mar 10, 2011
this code was just working! but for some reason it stopped to work now. when i run this project the following code is supposed to execute but it does
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim xmldoc As New System.Xml.XmlDocument()
[code]....
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Feb 17, 2008
I installed VS2008 ona newVista Ultimate 64 Bit machine. Works great. But if I try to change some VB2008 code while debugging, the system says, "Changes to 64 Bit applications are not allowed". Why is this? And will programming on a 64Bit machine always be hampered like this
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May 4, 2012
I once heard about a software that could dynamically run dotnet instructions (C#, if I remember well) on its command line, e.g when entering 1==1, the output would be true.I don't remember the name of this soft, and sometimes one just wants to know the result of a given instruction, without having to create a new program, compiling it and run it...
I would happily take the challenge to make a soft like this on my own later, but for now on I'd just like to find this soft.Does anyone know its name, or another app which would achieve the same result? (Don't tell me PowerShell, I'm searching for something more handy.
EDIT For those who use Visual Studio and who didn't know (I just learnt about it), you can also use the Immediate Window. It even allows you to get intellisense in some cases.
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Jul 31, 2009
On my last machine I had created a way to see a GUID variable while debugging by hovering over it. I don't remember what it was (a visualizer?). I have a new 64 bit machine with vs2008 - is there anyway to mouseover a guid value and have it appear? What makes guid's so special that their value doesn't show like most variables?
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Jun 21, 2010
I dont where am going wrong but when i am programming i will make some changes to make code and form e.g add a button or something. Then when i go to debug my program my change dont appear and its been a couple of days and my changes still dont appear when i debug my program.
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Aug 25, 2010
When I end my app by pressing the stop button in visual studio, is there a way for that event to trigger some exit code? I'd rather do that than include a visually distracting quit button.
Better still would be to program some kind of key sequence, eg control + q to trigger some quit code so my app can exit cleanly. Is this possible? I wouldn't know how to program a key shortcut but it might be handy.
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Jun 25, 2010
Prior to VS 2010 I was able to debug VB6 client code from the .Net IDE by setting "Start External Program" to vb6.exe (full path), or attaching to the running vb6 executable via "Tools->Attach to Process" and have execution stop at the required breakpoints in my .Net code.
Now with VS 2010 I seem to be only able to accomplish the same by setting the target framework to 4.
Is this a bug in VS 2010, or is there a switch/option that controls this?
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Mar 3, 2011
I'm creating some buttons in Word 2007 that I want to use in my company application to make our teams life easier. The application is a server application but when it loads it goes through our internet explorer.If I could reveal the source code then I could get the ElementbyID to hook up the button to the text field in the application.When the application loads I can quickly right click on view the source code and it is written in C#.This is one of the id's i was able to grab
id="upEnvironmentHidden" value="PRODUCTION"
How can I make it possible to view the source code of this application...also the internet explorer will dissapear and then the application is launched.
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Mar 23, 2010
I've almost completed my first VB.Net app which is a rewrite of an old vba app I wrote.The last part that I need to write is the timed events part. What I have in VBA is quite straightforward.Every 500ms the Timer event runs through, it checks if certain variables have been flagged and if so runs the relevent code? Code is nothing major, just updates a networked device.I've looked into timers in .net but it seems like there are various routes that I can go down.
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Feb 15, 2011
I am converting an old asp project to a new .NET project. Now, all vb code are inside aspx files, and we are on the process of moving all vb script from aspx files to .vb files. My problem is, I can't debug the vb script inside most of the aspx files. All my friends don't have this problem. I think the problem is with vb text editor.I am using Visual Studio 2008. Is there anyway, I can make visual studio understand that aspx files have vb script inside them.
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May 12, 2009
I have some VB6 code that instantiates a class which handles events that are being raised from a VB.NET component. The VB6 is pretty straightforward:private m_eventHandler as new Collection
public sub InitSomething()
dim handler as EventHandler
set handler = new EventHandler
m_eventHandler.Add handler
m_engine.Start
[Code]...
My problem is that when I debug the VB6 program, the first time InitSomething gets called, the event will not be handled (the VB6 event handler is never entered). Subsequent calls to InitSomething does work.
Everything works as I would have expected when I run the program outside the debugger. At this point, I'm not even sure if this is something I should be worried about.It may or may not be relevant but the VB.NET was converted from a VB6 using the Visual Studio code conversion tool (and subsequently manually cleaned up).
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Apr 2, 2011
When debugging a program and then we take it to a line breakpoint,then I want to modify the code again.but could not and such message appears in the image which I attach.What can we edit code program at the time of the process of debugging.This can be done in visual basic 6 ide?
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Jun 18, 2012
Well, I've read (and learned) that the finally block doesn't always execute its code (even apart from pulling the plug).FYI For more information, see try catch finally question
[Code]...
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Jul 6, 2011
in the begining i cold the database (accdb 2007) (AGC)and the table(telp)
in form declaration
Dim cn As New OleDb.OleDbConnection Dim cmd As New OleDb.OleDbCommand Dim ad As New OleDb.OleDbDataAdapter Dim cmdb As New OleDbCommandBuilder Dim dbs As New DataSet
[code].....
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Oct 28, 2011
Is possible to run code while computer is in log off mode? How can i do this?
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Oct 21, 2010
There has to be a setting for this somewhere, but for the life of me I can't find it. When I "Start Debugging (F5)", if there is an issue with my code, I get a "Build Failed" notification, in the lower left of my screen. I would like to be directed to the location of the failure. So far I have been lucky and have been able to find the offending code but this is getting scary .
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