Is there a way to catch ALL errors of the program?
Purpose: The idea is to catch all the errors of the program, load errorform which basically just says "A Error Was Detected" (Which I have already designed). Then send a web request to a formmail.php file with the said error (which i have already done).
In short: I need a way to catch ALL errors, and get the error string that it gave.
I want to catch all error handling without using try in each sub, since
View 8 RepliesI am making a new application and now I want to make sure if I forgot to handle any errors that might occure I want to put in a handler to handle all the other unhandled error's.[code]...
View 12 RepliesWhat is the convention in VB when a sub requires that a try/catch block succeed in order to function, but the catch block doesn't bubble the exception up?
I could put all of the code into the try block, but this seems messy since most of it doesn't need to be tried, it just needs the try to have succeeded.
For example, should the catch block exit the sub? This would work in my current situation, and if it is the proper procedure, let me know, but what about the more general scenario where both both success and failure require additional processing?
So I handle all exceptions in my project within my Global.asax page. For example, on a random page I could have:[code]So my question is in the Application_Error method, do I need the try/catch block when trying to write to the database? I'm thinking I would in case something goes wrong with the connection, etc. - but is this really necessary? Also, what would I do in the catch block if there is an error? At that point I would be catching the error of logging an error which is confusing in its own right.
View 1 RepliesI am handling errors via my global.asax in this method:
Dim CurrentException As Exception
CurrentException = Server.GetLastError()
Dim LogFilePath As String = Server.MapPath("~/Error/" & DateTime.Now.ToString("dd-MM-yy.HH.mm") & ".txt")
Dim sw As System.IO.StreamWriter = New System.IO.StreamWriter(LogFilePath)
[code]....
In my code I currently have no other error handling. Should I still insert try, catch, finally blocks?
I have developed a contact's manager in VB.net 2008, the program works fine on desktop's but when I try using it on a laptop I get this error message:
microsoft.visualbasic.powerpacks.vs, version=9.0.0.0, culture=neutral,publickeytoken=b03f5f7f11d50a3a
i have a try catch set up in my program and a message box that comes after the "End Try". when the message box pops up when an exception is thrown right after the second message box shows how do i stop this from happening?
View 16 RepliesI am trying to end a program immediately when a critical exception is caught. But I am finding that code after my Try/Catch block is executing even though the code withing the Catch block is executing, and that Catch code is calling Me.Close.
I suspect it has something to do with background .net threads or something, but I have no clue how to deal with those kinds of issues. How can I stop the program as quickly as possible? If code after my Catch executes, it will (and does) throw lots of uncaught exceptions later. Currently, it is not feasible for me to try to catch all the other exceptions. I just want to report an error and end the program.In my form load routine, I create and set up a number of objects and arrays by calling various subroutines.The success of most of the subroutines depends on the sucess of three subs in particular, which are called early on. If one of those three fails, there will undoubtedly be a number of hard to trap exceptions later on in the load routine.
[Code]...
While running an application in the IDE, the program properly handles Try/Catch/End Try blocks. This works fine for the most part, but is it possible to have errors generated in these blocks stop execution at the line with an error on encountering an error?
Is it possible to intercept any program write (to file/registry) commands and prompt the user to allow, while pausing the other program's command? Antivirus thing. I know, this seems impossible. But there must be a way! Even if it's just possible to notice what's happening and save another copy of the to-be-affected file first...
View 2 Repliesi need a way to be sure that one of my programs ALLWAYS receives data from a handheld scanner. The logic to process the recieved data is already in place. I need to be sure to receive the data from a certain usb-port at all times.
View 9 RepliesI have a program in VB.Net that receives mails from Outlook, extracts attachments and inserts the attachments into a table through a query. I would like to put the query/queries in a Try/Catch block, but cannot do so as Outlook exceptions cannot be caught, and it gives me an error, and unless I put a very specific exception, I cannot catch it. Is there a workaround?
Edit:
Try
Catch ex As Exception
End Try
Exception is underlined and when I hover on it, it says: "Catch cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not in 'System.Exception' or a class that inherits from 'System.Exception'". This is affecting all my other code which I'd like to put into a Try/Catch block.
The following code causes a "Warning" that Variable is used before value assigned.How do I restructure this Try/catch to eliminate error on the myreader.close command in the Catch part? Code appears to work fine but I dont like Warnings. [code]
View 8 Repliesi have problem when i click a ADD button, there is one null value in the textbox .. so the try catch statemnt is to catch that null value error but after that the catch is success but the button click never stop excute the statemnt till the end of the button event.
View 6 RepliesI have this scenario: in a Sub I have a Try...Catch statement.Within that Try..Catch I call another sub.In that 2nd sub is also a Try...Catch.(see below for example).Now if an exception occurs in the 2nd sub's Try...Catch, which Catch gets excecuted? The 2nd one, the 1st one or both?
Private Sub sub1()
Try
..do stuff[code].....
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.
View 2 Repliesfor our culminating activity we must make a program that uses a bunch of things etc.
i decided to go the extra mile and make sudoku.
The problem lies in generating the puzzle, the program always crashes, but there is never an error. im sure there are easy ways to make the generator, but from what we've learned this is the only way i know how to do it.
Private Sub FirstBlock()
Randomize()
intNumber(0, 0) = Int(9 * Rnd() + 1)
[Code]....
i made a function for each 3x3 square, and what happens is the block its currently on, checks for interferences horizontally, vertically, and within each 3x3 square, because computers process in order, i set it so that it only checks for previous block interferences, since this is the first 3x3 quadrant, there are no previous horizontal/verticals to check.
The code works fine, the problem is when i run it, it says its running but no form appears, i learned to use a progressbar to try and separate each 3x3 block to generate individually, to try and split the processes up 1 second at a time. the problem is, it does run, but it only generates a certain amount before it crashes, and every time its different, sometimes it generates half the puzzle, sometimes 1/3rd, sometimes only the first quadrant.
If I throw an exception from within a catch, does the finally (from the catch) still execute? i.e.
Try
..some code with an exception in it...
catch ex as Exception
throw new SpecialException("blah blah" & ex.Message, ex)
[code]....
How do catch key event (short cut keys like alt+d,Ctrl+u) when a program running in system tray ?
View 2 Replieshow do I program a .net framework message dialog screen in to the catch and try command
View 15 RepliesIs there a way to return only a set number of decimal places when using the mod function? My 'ones' equation seems to be rounding up? (I'm assuming I have the wrong idea about '\')
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[CODE]...
Is this program very inefficient? Based on the past programs I have written for this class, I would say I've probably done it again. I don't think I have written a single "efficient" program yet. =/
I have compiled a project with no errors and published the release version through ClickOnce to my website, almost 5 users are working ok with the application but on 2 computers the appliication fails when a button is pressed the exception is "Index was out of range.Must be non-negative and less than the size of the collection. Parameter name : index" Note that no parameter is named index in my code and that the program runs fine on 2/3 of the computer's I there is an error why does the application compiles?Also i have send my project file to a friend to use on his own visual studio to check if it compiles and the errors appeared in the debuger despite that i havent managed to find a solution, i beleive that my code is probably ok. I'm using visual studio 2008 with Option Explisit and Option Strict On and all the deployment pc's have .net 3.5
View 1 Repliesi have old program which is create in vb.5 i have in my PC vb.6 but when i want run program is give me a lot of error , i understand that i miss some .OCX i have this control or reference in my program 1- function MyScan(FpLibXCapture1 As FpLibXCapture, txtID As Object, LabelMessage As Label, LabelAlarm As Variant, Optional txtName As Object) Dim FpLibXVerify1 As FpLibXVerify Dim result As Boolean
View 2 RepliesI need to catch log4net exceptions (its own exceptions not app exceptions logged by it). I wish there's a way of doing it this way: [code] I have this code implemented and there's no errors in compilation but i force log4net to have an error (pointing to a non existing database in the config file) and nothing is threw.I've tried the listener aproach: [code] and it's writing the errors to log4net.txt, the forced ones i mean.This last aproach has a couple of drawbacks: it won't append every error to the file, if the error is the same it doesn't write it, i can't get the listener to write every error to that file, only one (I don't know how to fully configure the trace listener, it might be that). Thus it won't append the date and hour to every line wich is a necesity for me. Finally i can't give structure to it (xml). Even if the listener work i need to use the try/catch aproach, since i'm using ExceptionHandling from Enterprise library to log the errors in my app.
View 1 RepliesAnyone ever get fake compile errors and rebuild the program and then they go away? Well mine aren't going away and I can compile and run no problem. I've got something like 100 compile errors and the "run with error's" warning doesn't appear at any time and when I do run my program it runs just the way it should. However I still see like 100 errors.
View 4 RepliesI am not exactly sure what I am doing wrong. I need to convert Me.xCommissionLabel.Text = Format(Me.xCommissionLabel.Text, "currency") to a toString, so it displays a dollar sign, 2 decimal places. so I did this. Me.xCommissionLabel.Text = commissionLabel.ToString(CType("C", IFormatProvider))When I run the program and input the data I get: A first chance exception of type 'System.InvalidCastException' occurred in Commission Project.exe. [code]
View 7 RepliesI've built a windows form application that steps through a wafer map and sends a command to ink specific dies if the bin number is between certain values. While debugging I have run into an issue with the program crashing with no error message anywhere. While stepping through my code, the place the program stops has occured in two different places but both in the same subroutine in the code I use for the network communications. Below is the subroutine I've seen it break on with the two places it has broke indicated.
Private Sub EventHandler(ByVal Args As EventArgs)
Select Case Args.EventP
Case EventPointer.Connected
RaiseEvent Connected()
[code]....
I have almost completed a translation from C# to VB.NET, however, I run into some small errors[code]...
View 1 RepliesWhen I publish the program. Is there any way to get VB to publish the text files with the program so that no errors can occur. When I install and run the published program I get a series of errors relating to text files that are not found.
View 4 Replies