App.config Error Handling
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Badges Ask Question 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 Custom App.config section causing configuration load error up vote 3 down vote asp.net mvc error handling favorite I am using a custom configuration section in my app.config file to automatically email certain administrators when an error in the application occurs based on Jan Remunda's post here: How to create custom config section in app.config? App.config:
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programmers, just like you, helping each other. Join them; it only takes a minute: Sign up .NET Exception Handling Application Configuration File up vote 0 down vote favorite I apologize as this question is somewhat basic; however, http://stackoverflow.com/questions/18598432/custom-app-config-section-causing-configuration-load-error after a great deal of searching, I have not found a suitable answer. I am building a windows forms application and need to reference an app.config file for the location to a data file. Before calling XElement xml = XElement.Load(ConfigurationManager.AppSettings["EntityData"].ToString()); I want to ensure that the app.config file exists. I have tried multiple methods but it seems that it is a lot more work then it should be. For example I have been trying http://stackoverflow.com/questions/1262864/net-exception-handling-application-configuration-file to use the following code to determine the path for the file Uri uri = new Uri(System.Reflection.Assembly.GetExecutingAssembly().CodeBase); string fullConfigurationFilename = System.IO.Path.Combine(System.IO.Path.GetDirectoryName(uri.AbsolutePath), configurationFilename); but I run into issues with spaces in the path. Is there a better way to check for the existence of the app.config, do I even need to check? Thank you c# exception-handling app-config share|improve this question edited May 9 '10 at 20:29 Jon Seigel 9,45254381 asked Aug 11 '09 at 20:56 Irwin M. Fletcher 2,10121626 Just go access the configuration data. If the file is missing, an exception will be thrown, giving details of what's wrong. –John Saunders Aug 11 '09 at 20:58 yeah if you really want to check that put a try catch when accessing the AppSettings file and take it from there –JohnIdol Aug 11 '09 at 21:01 True, except you would likely access application settings throughout the application, so that can be a mess. –John Saunders Aug 11 '09 at 21:06 So that I am clear, if a user were to delete app.config file this would not throw an exception if I leverage the ConfigurationManager without checking for the existence of the file? –Irwin M. Fletcher Aug 11 '09 at 22:15 add a comment| 2 Answers 2 active oldest votes up vote 2
Twitter Help & Support Forum Stack Overflow IRC Slack Paid Support B CakePHP 3.3 Red Velvet Cookbook A Language: en pt es ja fr zh tr http://book.cakephp.org/3.0/en/development/errors.html Version: 3.x 3.x Book 2.x Book 1.3 Book 1.2 Book 1.1 https://laravel.com/docs/5.3/errors Book Nav Table of Contents × Improve This Doc Page Contents Error & Exception Handling Error & Exception Configuration Creating your Own Error Handler Changing Fatal Error Behavior Exception Classes Built in Exceptions for CakePHP HTTP Exceptions Other Built In Exceptions Using HTTP Exceptions error handling in your Controllers Exception Renderer Creating your own Application Exceptions Creating Custom Status Codes Extending and Implementing your own Exception Handlers Create and Register your own Exception Handler Extend the BaseErrorHandler Using the exceptionRenderer Option of the Default Handler Creating a Custom Controller to Handle Exceptions Logging Exceptions Error & Exception Handling¶ Many of PHP's asp.net error handling internal methods use errors to communicate failures. These errors will need to be trapped and dealt with. CakePHP comes with default error trapping that prints and or logs errors as they occur. This same error handler is used to catch uncaught exceptions from controllers and other parts of your application. Error & Exception Configuration¶ Error configuration is done inside your application's config/app.php file. By default CakePHP uses the ErrorHandler or ConsoleErrorHandler class to trap errors and print/log the errors. You can replace this behavior by changing out the default error handler. The default error handler also handles uncaught exceptions. Error handling accepts a few options that allow you to tailor error handling for your application: errorLevel - int - The level of errors you are interested in capturing. Use the built-in php error constants, and bitmasks to select the level of error you are interested in. trace - bool - Include stack traces for errors in log files. St
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