How to get ELMAH to work with ASP.NET MVC [HandleError] attribute?

How to Get ELMAH to Work with ASP.NET MVC [HandleError] Attribute?

🔥 Hey there, fellow developers! Are you struggling to get ELMAH to work with the [HandleError] attribute in your ASP.NET MVC application? 😫 Well, fear not! In this blog post, I'm going to walk you through the common issues and provide simple solutions to make ELMAH log the handled errors. 🛠️

Understand the Problem

🤔 So, you've noticed that ELMAH doesn't log any errors when you use the [HandleError] attribute on your controllers. Why is that? 🤷‍♀️ Well, ELMAH only logs unhandled errors by default. Since the [HandleError] attribute handles the error, ELMAH assumes there's no need to log it. 😕

Modify the [HandleError] Attribute

💡 Luckily, you can modify the [HandleError] attribute and make ELMAH aware of the errors even if they are handled. Here's how:

1. Open your FilterConfig.cs file located in the App_Start folder of your ASP.NET MVC project.

2. Find the line of code where the HandleErrorAttribute is registered as a global filter. It should look something like this:

   filters.Add(new HandleErrorAttribute());

3. Replace the above line of code with the following:

   filters.Add(new CustomHandleErrorAttribute());

4. Save the changes and close the file.

5. Next, create a new class called CustomHandleErrorAttribute by right-clicking on your project, selecting "Add", then "Class". Name the class CustomHandleErrorAttribute and click "Add".

6. Open the newly created CustomHandleErrorAttribute.cs file and replace the existing code with the following:

   using Elmah; public class CustomHandleErrorAttribute : HandleErrorAttribute { public override void OnException(ExceptionContext filterContext) { // Log the error using ELMAH ErrorSignal.FromCurrentContext().Raise(filterContext.Exception); // Call the base implementation for handling the error base.OnException(filterContext); } }

7. Save the changes. That's it! 🎉

Test it Out!

✅ Now, it's time to test if our modification worked. Run your ASP.NET MVC application and intentionally trigger an error that is handled by the [HandleError] attribute. 🚀

📝 Head over to your ELMAH logs and you should see the error logged there. 📋 ELMAH is now successfully aware of the handled errors and logs them accordingly. Awesome, right? 😄

Engage with Us!

🤟 We hope this guide has helped you integrate ELMAH with the [HandleError] attribute in your ASP.NET MVC application. If you have any questions or issues, feel free to drop a comment below. Our community and we would be happy to assist you further. 💬

🌟 And if you found this blog post useful, don't forget to share it with your fellow developers! Let's spread the knowledge and help others overcome the same hurdle. Together, we can make coding simpler and more enjoyable for everyone. 🎉💻

Happy coding! 👩‍💻👨‍💻