how to handle exception in a second thread in asp.net?

lucy

Hi,
I'm working on a multi-threading web application. I'm using
Application_Err or event to write exception detail to windows event log
to help debug. It seems exception happened in the second thread doesn't
fire this event. I tried to use trace.write() method. It doesn't seem
work either. I'm out of idea.

Any help is highly appreciated.

Lucy

Nov 19 '05 #1

Subscribe Reply

1860

Bruce Barker

multi thread asp.net apps is not usually a good idea as you can run into
scalling problems. if you start a thread, then its outside the asp.net
processing (as page processing is a asp.net thread calling a page method,
which uses a try/catch to implement Application_Err or).

you background thread can write to the event log itself (it shoudl catch its
own errors). it could call back to the main thread, though you have to be
careful, as the main thread may switch during page processing. asp.net is
free to switch threads before calling a page methods like onload, onint, or
firing page events.

-- bruce (sqlwork.com)

"lucy" <yo****@profite cinc.com> wrote in message
news:11******** *************@g 49g2000cwa.goog legroups.com...

Hi,
I'm working on a multi-threading web application. I'm using
Application_Err or event to write exception detail to windows event log
to help debug. It seems exception happened in the second thread doesn't
fire this event. I tried to use trace.write() method. It doesn't seem
work either. I'm out of idea.

Any help is highly appreciated.

Lucy

Nov 19 '05 #2

lucy

Thank you bruce. It worked for me. I'm using the second thread for
email processing, since it's a really long process, I don't want to
hold the end user back. But there is one problem. How can I notify them
whether the process is successful or failure? As you said by the time
the second thread is complete, they may switch to other page already.

Any idea or direction?

thanks in advance.

Lucy

Nov 19 '05 #3

Similar topics

13973

interrupted exception in sleep why?

by: Anks | last post by:

hi I am displaying a digital clock in an applet.I am using Thread.sleep (1000) for counting every second.This works fine some times but some times my clock just slows down or give an interrupted exception .I am not calling Thread.interrupt anywhere in my program. why is it happening? how to fix the problem? Anks

Java

1290

Ideas for yielding and exception raising

by: Calvin Spealman | last post by:

I was wondering if it was possible, now or with a patch, to do either of the following: 1) Cause another thread's most recent function, or a given function in a given thread, to yield its generator immediately, such that the generator can be used to pick back up where it left off. That is, the function itself wouldn't need an actually yield keyword. Could be used to allow a function to be controlled in how much time it has per second or...

Python

3172

Correct way to handle independent interpreters when embedding in asingle-threaded C++ app

by: Craig Ringer | last post by:

Hi folks I'm a bit of a newbie here, though I've tried to appropriately research this issue before posting. I've found a lot of questions, a few answers that don't really answer quite what I'm looking for, but nothing that really solves or explains all this. I'll admit to being stumped, hence my question here. I'm also trying to make this post as clear and detailed as possible. Unfortunately, that means it's come out like a book. I...

Python

3964

Proper way to handle exceptions in worker threads in ThreadPool?

by: Mark Hoffman | last post by:

All, My application spawns a worker process by calling BeginInvoke with an asynchronous callback method. This callback method is responsible for calling EndInvoke. No problems there; pretty much straight out of MSDN. My question is what happens when my worker thread raises an exception? I can easily catch the exception, but I've noticed that unless my async callback runs and EndInvoke gets called, then the worker thread never gets...

C# / C Sharp

7599

How do you guys handle error's from class libraries?

by: ahaupt | last post by:

Hi all, I'm currently writing a load of class libraries, but not the main application iteslf. I want to provide some method for reporting errors back to the main application. At the moment I have a bool errBl and a string errMsg in my classes. When errBl is ture, one could see what the error was in errMsg.

C# / C Sharp

2857

Problems with Serial Comm Handle

by: Leandro Berti via DotNetMonster.com | last post by:

Hi All, I wrote a code to do serial communication with an equipament. When i use the code outside of threaded class it seens work properly, but when i put inside a class and execute a thread in the first seconds the communication is ok, later i receive read/write error. I?ve been in MSDN site and there i discover that the read/write error is a INVALID_HANDLE problem. But why??? I just create the serial communication file and use it....

.NET Framework

3055

Menu handle program

by: Gary Wessle | last post by:

Hi I need help organizing this program in the right way. I included the code below which compiles and runs and gives the desired effect to a certain point, but I don't know what the next step is to finish this program. the program presents Main menu to the user and gives a prompt, the user types the number corresponding to an item from the menu, the program then

C / C++

1615

Throwing an exception on a thread....

by: Robinson | last post by:

Hi, I have 2 menu items on the Debug menu of my application: Throw Exception On Form and Throw Exception In Worker Thread The former just executes: throw new Exception ( "I'm testing exception handling here" )

Visual Basic .NET

2463

Aborting a worker thread with pending IO: safe handle...disposed e

by: =?Utf-8?B?aGVyYmVydA==?= | last post by:

I read from a serialport using a worker thread. Because the worker thread t does not loop often, I cannot wait to terminate the worker thread using a boolean in the While condition. So I have a StopReader() method that simply aborts the worker thread (is there a better way for the above situation?). The StopReader creates an ObjectDisposedException when calling t.Abort(). WHY? Public Sub StopReader()

.NET Framework

8474

What is ONU?

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...

General

8392

Changing the language in Windows 10

by: Hystou | last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...

Windows Server

8912

Problem With Comparison Operator <=> in G++

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...

C / C++

7428

AI Job Threat for Devs

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...

Career Advice

6222

Access Europe - Using VBA to create a class based on a table - Wed 1 May

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...

Microsoft Access / VBA

4222

Trying to create a lan-to-lan vpn between two differents networks

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...

Networking - Hardware / Configuration

2809

transfer the data from one system to another through ip address

by: 6302768590 | last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

C# / C Sharp

2049

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP

1807

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

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...

General