473,748 Members | 2,361 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

ApplicationExce ption unhandled by user code

Hi,

I have the following Program.cs -

namespace TestFrameworkAp plication
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Ena bleVisualStyles ();
Application.Set CompatibleTextR enderingDefault (false);
Application.Thr eadException += new
ThreadException EventHandler(ne w
ThreadException Handler().Appli cationThreadExc eption);
Application.Run (new FormMain());
}

/// <summary>
/// Handles any thread exceptions
/// </summary>
public class ThreadException Handler
{
public void ApplicationThre adException(obj ect sender,
ThreadException EventArgs e)
{
MessageBox.Show (e.Exception.Me ssage, "An exception
occurred:", MessageBoxButto ns.OK, MessageBoxIcon. Error);
Application.Exi t();
}
}
}
}

In my Form, I attempt the following -

private void button1_Click(o bject sender, EventArgs e)
{
ThrowException( );
}

private void ThrowException( )
{
throw new ApplicationExce ption("Monkey exception");
}

But when I click on the corresponding button, I keep getting the
message "ApplicationExc eption unhandled by user code" from the
debugger. But once I continue the debugger, the message box pops up
with the error. What is the debugger warning me about and can I switch
off this message if I am not actually doing anything incorrect?

Thanks for your help,

Barry.

Apr 24 '07 #1
4 15931
It seems to me that you are throwing an ApplicationExce ption, which
apparently is not the same exception type that you have code to handle for
(ThreadExceptio n).
Peter

--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net


"bg***@yahoo.co m" wrote:
Hi,

I have the following Program.cs -

namespace TestFrameworkAp plication
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Ena bleVisualStyles ();
Application.Set CompatibleTextR enderingDefault (false);
Application.Thr eadException += new
ThreadException EventHandler(ne w
ThreadException Handler().Appli cationThreadExc eption);
Application.Run (new FormMain());
}

/// <summary>
/// Handles any thread exceptions
/// </summary>
public class ThreadException Handler
{
public void ApplicationThre adException(obj ect sender,
ThreadException EventArgs e)
{
MessageBox.Show (e.Exception.Me ssage, "An exception
occurred:", MessageBoxButto ns.OK, MessageBoxIcon. Error);
Application.Exi t();
}
}
}
}

In my Form, I attempt the following -

private void button1_Click(o bject sender, EventArgs e)
{
ThrowException( );
}

private void ThrowException( )
{
throw new ApplicationExce ption("Monkey exception");
}

But when I click on the corresponding button, I keep getting the
message "ApplicationExc eption unhandled by user code" from the
debugger. But once I continue the debugger, the message box pops up
with the error. What is the debugger warning me about and can I switch
off this message if I am not actually doing anything incorrect?

Thanks for your help,

Barry.

Apr 24 '07 #2
Try this:

Go to VS 2005 menu Tools | Options and then Debugging/General. Uncheck
'Enable Just my Code'.

"bg***@yahoo.co m" wrote:
Hi,

I have the following Program.cs -

namespace TestFrameworkAp plication
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Ena bleVisualStyles ();
Application.Set CompatibleTextR enderingDefault (false);
Application.Thr eadException += new
ThreadException EventHandler(ne w
ThreadException Handler().Appli cationThreadExc eption);
Application.Run (new FormMain());
}

/// <summary>
/// Handles any thread exceptions
/// </summary>
public class ThreadException Handler
{
public void ApplicationThre adException(obj ect sender,
ThreadException EventArgs e)
{
MessageBox.Show (e.Exception.Me ssage, "An exception
occurred:", MessageBoxButto ns.OK, MessageBoxIcon. Error);
Application.Exi t();
}
}
}
}

In my Form, I attempt the following -

private void button1_Click(o bject sender, EventArgs e)
{
ThrowException( );
}

private void ThrowException( )
{
throw new ApplicationExce ption("Monkey exception");
}

But when I click on the corresponding button, I keep getting the
message "ApplicationExc eption unhandled by user code" from the
debugger. But once I continue the debugger, the message box pops up
with the error. What is the debugger warning me about and can I switch
off this message if I am not actually doing anything incorrect?

Thanks for your help,

Barry.

Apr 24 '07 #3
On 24 Apr, 13:04, Siva M <shiva...@onlin e.excite.comwro te:
Try this:

Go to VS 2005 menu Tools | Options and then Debugging/General. Uncheck
'Enable Just my Code'.

"b...@yahoo.com " wrote:
Hi,
I have the following Program.cs -
namespace TestFrameworkAp plication
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Ena bleVisualStyles ();
Application.Set CompatibleTextR enderingDefault (false);
Application.Thr eadException += new
ThreadException EventHandler(ne w
ThreadException Handler().Appli cationThreadExc eption);
Application.Run (new FormMain());
}
/// <summary>
/// Handles any thread exceptions
/// </summary>
public class ThreadException Handler
{
public void ApplicationThre adException(obj ect sender,
ThreadException EventArgs e)
{
MessageBox.Show (e.Exception.Me ssage, "An exception
occurred:", MessageBoxButto ns.OK, MessageBoxIcon. Error);
Application.Exi t();
}
}
}
}
In my Form, I attempt the following -
private void button1_Click(o bject sender, EventArgs e)
{
ThrowException( );
}
private void ThrowException( )
{
throw new ApplicationExce ption("Monkey exception");
}
But when I click on the corresponding button, I keep getting the
message "ApplicationExc eption unhandled by user code" from the
debugger. But once I continue the debugger, the message box pops up
with the error. What is the debugger warning me about and can I switch
off this message if I am not actually doing anything incorrect?
Thanks for your help,
Barry.- Dölj citerad text -

- Visa citerad text -
That worked, thanks. But why did it work?

Apr 24 '07 #4
ThreadException event should occur on any unhandled exception in current
thread; example in MSDN throws ArgumentExcepti on as well.

Still I don't understand working with unhandled exceptions. In my
application I used Application.Thr eadException event to display dialog box
when unhandled exception occured and it worked... until non-catched exception
was thrown from Application.Idl e event handler. ThreadException event handler
was not called and standard .NET dialog box appeared advising to send report
to MS.

If I handle AppDomain.Curre ntDomain.Unhand ledException, this handler *is*
called when exception in Idle occurs. But it only informs about exception.
When my handler ends, standard .NET crash dialog box appears again.

The exception in Idle handler can also be caught by sorrounding
Application.Run with try-catch. But that would require some "goto" or "while"
to resume the application if I wish to continue after exception.

I cannot make head of it:)

Pepa

"Peter Bromberg [C# MVP]" wrote:
It seems to me that you are throwing an ApplicationExce ption, which
apparently is not the same exception type that you have code to handle for
(ThreadExceptio n).
Peter

--
Site: http://www.eggheadcafe.com
UnBlog: http://petesbloggerama.blogspot.com
Short urls & more: http://ittyurl.net


"bg***@yahoo.co m" wrote:
Hi,

I have the following Program.cs -

namespace TestFrameworkAp plication
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Ena bleVisualStyles ();
Application.Set CompatibleTextR enderingDefault (false);
Application.Thr eadException += new
ThreadException EventHandler(ne w
ThreadException Handler().Appli cationThreadExc eption);
Application.Run (new FormMain());
}

/// <summary>
/// Handles any thread exceptions
/// </summary>
public class ThreadException Handler
{
public void ApplicationThre adException(obj ect sender,
ThreadException EventArgs e)
{
MessageBox.Show (e.Exception.Me ssage, "An exception
occurred:", MessageBoxButto ns.OK, MessageBoxIcon. Error);
Application.Exi t();
}
}
}
}

In my Form, I attempt the following -

private void button1_Click(o bject sender, EventArgs e)
{
ThrowException( );
}

private void ThrowException( )
{
throw new ApplicationExce ption("Monkey exception");
}

But when I click on the corresponding button, I keep getting the
message "ApplicationExc eption unhandled by user code" from the
debugger. But once I continue the debugger, the message box pops up
with the error. What is the debugger warning me about and can I switch
off this message if I am not actually doing anything incorrect?

Thanks for your help,

Barry.
Jul 5 '07 #5

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
2956
by: Professor Frink | last post by:
First off, I apologize if this gets long. I'm simply trying to give you all enough information to help me out. I'm writing (almost finished, actually), my first VB.Net application. It's a forms application that is going to be used to extract data from a legacy system (VSAM based mainframe file structure), and output data in pipe-delimited record layouts, multiple record types per file, one file per chosen client. I have been working on...
6
6285
by: Russell Mangel | last post by:
Jeffery Richter makes the following statement in two books, the first was written in 2004, the latter in 2002. "You should not define new exception classes derived from ApplicationException; use Exception instead." ..NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library (2004) http://www.aw-bc.com/catalog/academic/product/0,1144,0321154894-DS,00.html Exception Management...
2
1601
by: Charles | last post by:
I need to find a way to share information between two classes, one is an employee class and the other is a custom error class that inherits from ApplicationException. These two classes are part of a ClassLibrary project. The other project has all the web page classes. My project allows employees to log in using Forms Auth, I do some checking on the person that is logging in and then after that is good I create an employee object and...
4
2254
by: Craig831 | last post by:
First off, I apologize if this gets long. I'm simply trying to give you all enough information to help me out. I'm writing (almost finished, actually), my first VB.Net application. It's a forms application that is going to be used to extract data from a legacy system (VSAM based mainframe file structure), and output data in pipe-delimited record layouts, multiple record types per file, one file per chosen client. I have been working on...
4
2120
by: Tad Marshall | last post by:
Hi, I'm having limited luck getting an ApplicationException to work right in my code. This is VB.NET, VS 2003, Windows XP SP2, .NET Framework 1.1. I thought it would be convenient to take advantage of exception handling to deal with the case of the user clicking the Cancel button while a long operation was running. So, I declared a class inherited from ApplicationException and I Throw one of these with the text "User pressed Cancel"...
5
3399
by: Simon Tamman {Uchiha Jax} | last post by:
Now this is bugging me. I just released software for a client and they have reported an unhandled stack overflow exception. My first concern is that the entirity of the UI and any threaded operations are all within Try Catches to help me locate the problem and the origination of any problem by specifiying an error code in the "Catch" section. So theoretically this shouldn't have been possible (at which point we all say "yeah,...
2
2182
by: Bob | last post by:
I MUST be able to trap unhandled exceptions, bring the thread to a routine that then closes the thread on which the execption occurred without closing or affecting the other threads. Think of an Interactive voice response telephone application. An unforeseen error occurs on one phone call. You terminate that phone call politely but you don't all of a sudden hang up the phone without warning on the other 400 callers that are on line at that...
1
914
by: bg_ie | last post by:
Hi, I have the following Program.cs - namespace TestFrameworkApplication { static class Program { /// <summary> /// The main entry point for the application.
0
1519
by: Autostrad | last post by:
I use V C++ 2008. From the code below I am trying to make a program that will ask the user to enter a number into the text box. If the user click “OK”, without entering a number a dialog box will come up to show that unhandled exception has occurred…. I want to prevent the unhandled…. dialog box from coming up. I want to use a message box instead, to promt the user to enter a number and the program should go on. I noticed that if I...
0
8984
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9530
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
9238
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
8237
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
6793
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
4593
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
4864
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
2
2775
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2206
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.