Getting First Chance Exceptions Stop My App
Jan 15, 2011
When an exception is thrown in my app, I expect the debugger to stop running and enter debugging mode, but it does not. Instead, I just get a message in the Immediate Window ('A first chance exception ...'), and the program keeps on running like if nothing happened. However, the sub (in which the exception was thrown) is exited, so statements after the exception are not executed. Since this sub makes the initialization of my program, running becomes very unstable.How can I tell the debugger to stop execution when an exception is thrown? On the 'Advenced compile options' page I don't have 'Target CPU'. Maybe it's that I have only VB Express?If I tick the 'Thrown' checkbox in Debug > Exceptions, execution stops even if I have a catch for that exception, and I don't want that.Until now I used VB 2008 on 32 bit, and everything worked fine, but since I moved to 2010 64 bit I just can't get it right.
View 3 Replies
ADVERTISEMENT
Mar 16, 2012
Is there a way to configure the debugger or write code in such a way as to get more information when first chance exceptions happen? I understand they are generally not harmful and I do quite a bit of exception handling in code but when I'm doing database operations it's to know when first chance exceptions occur. Of course I can see them in the Immediate Window in VS but I would like a full stack trace, not ust a line saying "A first chance exception..."
View 3 Replies
Dec 21, 2009
is there anyway to stop the compiler from saying first hand exceptions without having to Ctrl Alt E and Tick the boxes?
View 8 Replies
Feb 22, 2011
The following code is throwing Exception. I don't get what mistake I am making in the code. i think it is of some security rights issue. If so, how can I give the security rights to any user or application to access this windows service programmatically?
Dim sc As New ServiceController
sc.ServiceName = "DataLoad"
If sc.Status = ServiceControllerStatus.Stopped Then
[code]....
View 1 Replies
Dec 26, 2009
I've just skipped around a few inbuilt VB classes' methods which throws exception. of all that i've came across, methods may throw multiple exceptions but ALL of them are exclusive, meaning there is no way 2 exceptions will ever occur simultaneously, yea and i was trying to make my class throw 2 exceptions simultaneously, hence this question, must all exceptions be exclusive?
View 1 Replies
Feb 26, 2009
Alright, so I'm still working on the slot machine. I have three timers all independently going for my three "wheels" of the slot machine.
My issue, is that I'm trying to make a Stop button to stop each timer one at a time, and I'm not understanding why this code isn't working. The logic completely makes sense, and the first "wheel" stops when I click the button, however, it doesnt appear to stop the other two timers.
CODE:
View 2 Replies
Feb 11, 2009
I know I'm being quite pedantic here. But, what is the right way to get a true 50/50-chance with a generated random number? Say, to simulate the flip of a coin. [code] I know this difference is close to nothing, but I'm doing some calculations on bell curves, in such a way that it requires true 50/50-chance.
View 33 Replies
Jul 9, 2010
i finished a project ive been working on for weeks or well i thought i had finished it.. in VS debug environment it runs fine doing its logics for hours without a problem but after publishing it as a standalone it starts throwing errors pretty soon. Took another look at whats going on in VS debug and the only thing that stands out is "A first chance exception of type 'System.OverflowException' occured.." that pops up every now and then so i think this is whats crashing my program outside vs. This poses 2 problems a) the code is around 2k lines/3 classes and heavily multithreaded and i have no clue where exactly this error gets generated, b) from my previous encounters with first chance exceptions they seem like more "possibility for error" instead of an actual error itself and very hard to track down
View 1 Replies
Dec 24, 2009
I have a simple application that use thread pool to read a file and input the data into a listbox. I want to be able to stop threadpool from running after clicking a stop button. How do I stop threadpool? Here is the code for my application below:
Imports System.Threading
Public Class Form1
Private Delegate Sub StringDelegate(ByVal text As String)
[Code]....
View 6 Replies
Dec 7, 2009
I created a form and have the variable inputs for 4 motor run statements. Then with a start button the script starts and it is surrounded by a for next statement to loop 10 times. It works fine but if i need to stop the execution of the script with a stop button. I put the stop in a new section but of course does not work to do a motor stop. It just causes the exe to not respond till the loop is complete. Just need to be able to stop the Run1_Click button section.
Edit:I do not mind if it finishes the 4 motor run commands and then stops execution of the loop. So need to figure out a way to trigger a stop from a button on the form to stop the cycle. For the future the loop will be a variable integer input so 10 will not be the standard.
Edit::Does a ' Do ' statement sound like the thing to use? If so how and where would I place that? Have a Stop button on the form and it would stop after the 4th motor run command.
#End Region
Declare Function InitStp Lib "stp.dll" () As Integer
Declare Function RunMotor1 Lib "stp.dll" (ByVal steps As Integer, ByVal interval As Integer, ByVal direction As Integer, ByVal outputs As Integer) As Boolean
[code]....
View 2 Replies
Aug 31, 2010
I'm trying to build a function where I can pass in a percentage and it would have that percentage to return a true value. However I'm completely drawing a blank on how to make on such function.
View 3 Replies
Mar 29, 2010
I have several ActiveX controls in my project one of them loads solidmodeling files for viewing. Because this process can take some time the authors provided an OnFinishedLoadingDocument event.This worked fine under VB6.Now however under VB.NET 2008 framework 3.5 I get an exception thrown When I try to access a form control from this event.
Quote:
A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll I found an article that says something about it.
Quote:
If you are using ActiveX controls on a form, you may receive the cross-thread InvalidOperationException when you run under the debugger How can I add text to my control from this event?
Code:
Private Sub oView_SW_OnFinishedLoadingDocument(ByVal sender As Object, _
ByVal e As AxEModelView._IEModelViewControlEvents_OnFinishedLoadingDocumentEvent) _
Handles oView_SW.OnFinishedLoadingDocument
Dim nSheet As Integer = 0
[code]....
View 8 Replies
Mar 20, 2012
I have a simple C++ dll and I want to use its Function in a VB.Net application.So the Dll's name is DllExample.dll
Code:
// DllExample.cpp : Defines the exported functions for the DLL application.
#include "stdafx.h"
int _stdcall ReportVersion() {[code]....
But when I compile it I get the Following Error:A first chance exception of type 'System.EntryPointNotFoundException' occurred in DllExampleVb.exe
I have tried the following: I have used Decalre Function DllExample also but the same error is there.how exactly should I use C++ dll's in Vb.
View 5 Replies
Sep 23, 2009
For the life of me i can't figure out why this is throwing a first chance exception error. The error I'm getting in the immediate window is
Quote:
A first chance exception of type 'System.ArgumentException' occurred in Microsoft.VisualBasic.dll
[code].....
View 7 Replies
May 11, 2012
I am running vs 2008 and and trying to connect to an sql server 2005 to do userauthentication, but the error message i get is"Access to the registry key 'HKEY_LOCAL_MACHINESOFTWARESmartinfoLibServer' is denied" and the message "A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll" also shows in the immediate window.
View 1 Replies
Feb 23, 2012
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim tab As New Form
tab.Size = New Point(500, 500)
tab.Location = New Point(500, 500)
tab.Text = "Loading"
[Code]...
View 4 Replies
Apr 26, 2010
I get this message each time I run the appA first chance exception of type 'System.NullReferenceException' occurred in <Applicaton>I have isolated the key Subs which seem to upset it, but I cannot for the life of me figure out what it is about it that's upsetting it. I have used On Error Goto etc for the time being, which gets around it but I would like to solve it rather than jumpver it.Err.Description returns "Object reference not set to an instance of an object."My sub looks like this:
View 2 Replies
Jul 29, 2009
Multi-Threading. I have got a simple bit of code that will need to be repeated but with a chance of it overlapping the only complex bit is there will be a varible that will be different each time. so I was wondering if I put it in another Thread and store the varible within the thread code would that achieve what I am looking for? To make it slightly easyier once the thread is started and pulled the Varible in there will be no cross talking between the thread and main app thread (ie no progress reports, no aborts/suspends etc) Nothing will be feeding back on thread completion either, when it ends it ends.
This is what I have so far:
Imports System.IO
Imports System.Threading
[CODE]...........................
View 5 Replies
Feb 26, 2011
my problem is that when I try to write a exe application for measuring the cpu usage every time I get the error:
A first chance exception of type 'System.InvalidOperationException' occurred in System.dll
A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
The code I use is: [Code] And I get the above error,I searched a little in the internet but the most post were for database optimization and so on.
View 10 Replies
Feb 1, 2010
NET 2008 to write a windows application. I try to connect to my ACCESS database and run the
program, the immediate window prompted me with this error message. May I know what went wrong in my
codings?[code...]
View 1 Replies
Aug 28, 2010
I am working with a datagridview. Is there any chance a column is set to be a textbox initially but for example I want the top item to be a combobox??? This should enabled the user to select something of the list but also load in what was selected and saved before... So for example I have a column called Product Name and it has 5 rows 4 of them should appear as textboxes but one top cell should appear as combobox
View 2 Replies
Aug 5, 2010
I'm converting another project from VS2003 to VS2010 and am getting this message in the Immediate Window before I hit my MyBase.Load. From the warning, it looks like somting is undefined yet is being used - causing an exception. How can I trace this down?My app uses 2 DLLs, could the msg be coming from them during their load?
View 1 Replies
Mar 1, 2011
I have a START and STOP button and when the user clicks "start" the program does a whole bunch of calculations and all. However, I noticed that when I was testing the program I clicked STOP the program continues to execute stuff.
My START code is basically a while loop that iteratively does some calculations.
So I just put a boolean variable as the while condition and when user clicks stop its set to false and when user clicks start its set to true. However, when I click stop, the condition is set to false yes but it still executes all the code until the condition is re-evaluated right...so my question is how can I get out of the while loop when user instantly clicks "stop"?
View 5 Replies
Oct 9, 2011
Error is Simple Application -- Error Type (A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll)
View 3 Replies
Nov 1, 2009
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,
View 3 Replies
Jul 27, 2008
I need to record the screen when my user clicks start, and stop recording when he clicks stop.I've searched for a while on this subject, and I have found nothing.I want to do this without adding any files to my project, I just want to use some built in function in Visual Basic, and start recording, or even take a snapshot and add it to an AVI file or something...These are some sites I have found:
http:[url]......
This code is in VB6, but I am not sure how to even start using it?
View 1 Replies
Mar 15, 2010
I have a text string like this which I will need to parse: FriMar1200:00:00EST2010 And I used the following Date.ParseExact("FriMar1200:00:00EST2010", "dddMMMddHH:mm:sszzzyyyy", Nothing) And it is giving me a A first chance exception of type 'System.FormatException' occurred in mscorlib.dll error.
View 2 Replies
Nov 29, 2011
Here are parts of my
Dim setting As My.MySettings
lvl As Integer
Dim xp As Integer
Dim xpt As Integer
[code]....
I have done the settings as type integer and set the values that I wanted but I get this error: A first chance exception of type 'System.NullReferenceException' occurred in Click Game concepts.exe
View 10 Replies
Nov 22, 2011
I have this issue with casting....is there anyway i could pass an integer into a label...this is what i have done so far but i am getting this error "A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll"
Dim firstNumber As Integer
Dim secondNumber As Integer
Dim solution As Integer
[CODE].........................
View 1 Replies
Apr 30, 2011
I need to write a program that indicates the larger of two variables using exceptions.I'm not sure if this is an acceptable code. I'm new at this and attempted with this code here:
[Code]...
I normally wouldn't use an exception but I am asked to use one, I'm just not sure what kind of exception would work best.
View 2 Replies
