Net Error Handling Winforms
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about
Exception Handling In C# Windows Application
Stack Overflow the company Business Learn more about hiring developers or posting ads with vb.net winforms global exception handler us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is
Threadexceptioneventhandler
a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up WinForms Global Exception Handling? up vote 8 down vote favorite 6 I have implemented c# winforms exception handling a software which have a DLL library which contains a huge set of classes which includes all the methods for my software. Now i want to be able to handle some global errors like error #26 which is a no Network Related Error on all these classes instead of going to each class and add it. How to do that ? c# winforms share|improve this question asked Nov 16 '11 c# windows forms catch unhandled exceptions at 7:36 ykh 67311333 add a comment| 3 Answers 3 active oldest votes up vote 5 down vote accepted I #26 is an exception then you can use AppDomain.CurrentDomain.UnhandledException event. If it's just a return value, then I won't any chance to handle that globally. share|improve this answer answered Nov 16 '11 at 7:45 Fischermaen 8,43512347 1 Where to put this piece of code, if you have any reference or you can post an example i will be very great-full. –ykh Nov 16 '11 at 7:47 See the MSDN link in my answer. It has an example : msdn.microsoft.com/en-us/library/… –gideon Nov 16 '11 at 7:49 add a comment| up vote 19 down vote Since its a winforms app you could just enclose Application.Run(new MainForm()); in a try catch block. static void Main() { try { Application.Run(new MainForm()); } catch(SystemException)//just as an example { //log or handle the error here. } } I don't know any implications this kind of solution would cause, but I just told you what you needed. Other options are subscribing to Application.ThreadException event. Read more here: unhandledexceptions There is also AppDomain.UnhandledException and you should read the difference between them here on MSDN. From MSDN : For certain application models, the UnhandledException event
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more
Try Catch C# Windows Form Example
about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users setunhandledexceptionmode Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each
Currentdomain_unhandledexception
other. Join them; it only takes a minute: Sign up Global Exception Handling for winforms control up vote 27 down vote favorite 6 When working on ASP.NET 1.1 projects I always used the Global.asax to catch all errors. http://stackoverflow.com/questions/8148156/winforms-global-exception-handling I'm looking for a similar way to catch all exceptions in a Windows Forms user control, which ends up being a hosted IE control. What is the proper way to go about doing something like this? winforms error-handling user-controls share|improve this question edited May 4 '12 at 10:03 mattytommo 40.3k1272109 asked Aug 5 '08 at 20:05 Alex 95311024 Also have a look at my question for some of the pitfalls (links to a couple of http://stackoverflow.com/questions/2770/global-exception-handling-for-winforms-control coding horror blog entries). –Ray Aug 5 '08 at 22:17 add a comment| 5 Answers 5 active oldest votes up vote 21 down vote accepted You need to handle the System.Windows.Forms.Application.ThreadException event for Windows Forms. This article really helped me: http://bytes.com/forum/thread236199.html. share|improve this answer edited May 4 '12 at 10:11 mattytommo 40.3k1272109 answered Aug 5 '08 at 20:11 Chris Leon 35125 add a comment| up vote 8 down vote Currently in my winforms app I have handlers for Application.ThreadException, as above, but also AppDomain.CurrentDomain.UnhandledException Most exceptions arrive via the ThreadException handler, but the AppDomain one has also caught a few in my experience share|improve this answer answered Aug 5 '08 at 20:42 Orion Edwards 71.3k41172250 3 Sample code from MSDN showing how to catch both types of unhandled exceptions: msdn –Jan Hettich Jul 14 '11 at 0:43 add a comment| up vote 6 down vote If you're using VB.NET, you can tap into the very convenient ApplicationEvents.vb. This file comes for free with a VB.NET WinForms project and contains a method for handling unhandled exceptions. To get to this nifty file, it's "Project Properties >> Application >> Application Events" If you're not using VB.NET, then yeah, it's handling Application.ThreadException. share|improve this answer edited Aug 5 '08 at 20:20 answered Aug 5 '08 at 20:16 Brad Tutterow 6,30432533 add a comment| up vote 2 down vote Code from MSDN: http://msdn.microsoft.com/en-us/library/system.appdomain
tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring http://programmers.stackexchange.com/questions/244971/exception-handling-in-win-forms-application developers or posting ads with us Software Engineering Questions Tags Users Badges Unanswered Ask Question _ Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle who care about creating, delivering, and maintaining software responsibly. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Exception c# windows handling in WIn Forms application up vote 1 down vote favorite When handling exceptions for example in a method in my presentation logic, is it ok to catch all possible exceptions in a one catch block as follows if the only purpose here is alerting the user. private void Do() { try { // Do some stuff here which might throw an exception } catch (Exception e) { MessageBox.Show(e.Message); } } Or else should we always catch every possible exceptions c# windows form (like OutOfMemoryException, NullReferenceException etc. followed by more generalized exceptions) in separate catch blocks ? Since the information in e.message is not relevant for average users, we could do like MessageBox.Show("Exception occurred and contact system administrator"); Is that the standard way ? NOTE : My sole purpose is to alert user and try to keep the system up (with out crashing) c# .net exception-handling mvp share|improve this question edited Jun 14 '14 at 8:06 Doc Brown 77.2k7124236 asked Jun 14 '14 at 6:52 CAD 18529 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted IMHO if that is ok depends mostly on the context of the Do method, and what you know about the stuff in the try-block. Lets assume you have an UI application, and the Do part is just a Button-Click handler. Lets further assume the part within the try block does some fairly complex non-UI things which might fail with any kind of unforseeable exception (but normally it should not, and when it does, there has happened something severe). So if your failure handling strategy is to display the exception message to the user and let him or her decide what to do next (for example, he can decide to close and restart the application, or to ignore the error), then catching all type of exceptions is just the way to go. That might not be a perfect solution, but