How can I implement error handling and logging in MVC applications?

How can I implement error handling and logging in MVC applications?

You can implement error handling in MVC by using custom error pages and exception filters. For logging, consider using a logging framework like Serilog or NLog.

What are exception filters and how do I use them?

Exception filters allow you to handle exceptions globally or at the controller level. You can create a custom exception filter by implementing the IExceptionFilter interface.

Can you give me an example of a custom exception filter?

Sure! Here's a simple example:

public class CustomExceptionFilter : IExceptionFilter
{
    public void OnException(ExceptionContext context)
    {
        // Log the exception
        // Return a custom error response
        context.Result = new ViewResult { ViewName = "Error" };
        context.ExceptionHandled = true;
    }
}

How do I register this filter in my application?

You can register the filter in the Startup.cs file within the ConfigureServices method:

services.AddControllersWithViews(options =>
{
    options.Filters.Add<CustomExceptionFilter>();
});