C# Windows Application Error Handling
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Exception Handling In C# Windows Application
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C# Windows Service Error Handling
x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up c# console application error handling Best Practice for Exception Handling in a Windows Forms Application? up vote 109 down vote favorite 94 I'm currently in the process of writing my first Windows Forms application. I've read a few C# books now so I've got a relatively good understanding of what language features C# has to deal with exceptions. They're all quite theoretical however so what I haven't got c# error handling in constructor yet is a feel for how to translate the basic concepts into a good exception-handling model in my application. Would anyone like to share any pearls of wisdom on the subject? Post any common mistakes you've seen newbies like myself make, and any general advice on handling exceptions in a way that will my application more stable and robust. The main things I'm currently trying to work out are: When should I re-throw an exception? Should I try to have a central error-handling mechanism of some kind? Do handling exceptions which might be thrown have a performance hit compared with pre-emptively testing things like whether a file on disk exists? Should all executable code be enclosed in try-catch-finally blocks? Are there any times when an empty catch block might be acceptable? All advice gratefully received! c# winforms exception-handling share|improve this question edited Oct 13 '11 at 13:56 Otiel 9,63094491 asked Oct 8 '08 at 16:13 Jon Artus 2,390103039 add a comment| 15 Answers 15 active oldest votes up vote 73 down vote A few more bits ... You absolutely should have a centralized exception handling policy in place
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C# Error Handling Get Line Number
9 Documentation APIs and reference Dev centers Retired content Samples We’re c# error handling framework sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. System.Windows.Forms Application
C# Error Handling Techniques
Class Application Events Application Events ThreadException Event ThreadException Event ThreadException Event ApplicationExit Event EnterThreadModal Event Idle Event LeaveThreadModal Event ThreadException Event ThreadExit Event TOC Collapse the table of http://stackoverflow.com/questions/183589/best-practice-for-exception-handling-in-a-windows-forms-application content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. Application.ThreadException Event .NET Framework (current version) Other Versions Visual Studio 2010 .NET Framework 4 Visual Studio 2008 .NET Framework 3.5 .NET Framework 3.0 .NET Framework 2.0 .NET Framework 1.1 Occurs when an untrapped https://msdn.microsoft.com/en-us/library/system.windows.forms.application.threadexception(v=vs.110).aspx thread exception is thrown.Namespace: System.Windows.FormsAssembly: System.Windows.Forms (in System.Windows.Forms.dll)Syntax C#C++F#VB Copy public static event ThreadExceptionEventHandler ThreadException RemarksThis event allows your Windows Forms application to handle otherwise unhandled exceptions that occur in Windows Forms threads. Attach your event handlers to the ThreadException event to deal with these exceptions, which will leave your application in an unknown state. Where possible, exceptions should be handled by a structured exception handling block.You can change whether this callback is used for unhandled Windows Forms thread exceptions by setting SetUnhandledExceptionMode. To catch exceptions that occur in threads not created and owned by Windows Forms, use the UnhandledException event handler. Note To guarantee that no activations of this event are missed, you must attach a handler before you call Application.Run.Caution Because this is a static event, you must detach your event handlers when your application is disposed, or memory leaks will result.ExamplesThe following code example sets event handlers for exceptions that occur on Windows Forms threads and exceptions that occur on other threads. It sets SetU
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners https://msdn.microsoft.com/en-us/library/bb397417.aspx ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. MSDN Library MSDN Library MSDN Library MSDN Library Design Tools Development Tools error handling and Languages Mobile and Embedded Development .NET Development Office development Online Services Open Specifications patterns & practices Servers and Enterprise Development Speech Technologies Web Development Windows Desktop App Development TOC Collapse the table of content Expand the table of content This documentation is archived and is not being c# error handling maintained. This documentation is archived and is not being maintained. Complete Example for Error Handlers Other Versions Visual Studio 2010 .NET Framework 4 Visual Studio 2008 This code example includes elements for both page-level and application-level exception handling. Code Example Files The example consists of the following files: Web.config Global.asax Default.aspx ExceptionUtility (to be put in the App_Code folder) GenericErrorPage.aspx HttpErrorPage.aspx Http404ErrorPage.aspx DefaultRedirectErrorPage.aspx Web.config The following example shows the Web.config file. The customErrors section specifies how to handle errors that occur with file types that are mapped to ASP.NET, such as .aspx, .asmx, and .ashx files. (In IIS 6.0 and in IIS 7.0 in classic mode, static content files such as .html and .jpg files are not mapped to ASP.NET.) The settings in the example customErrors section cause any unhandled HTTP 404 (file not found) errors to be directed to the Http404E