How can I implement error handling filters in ASP.NET MVC?

How can I implement error handling filters in ASP.NET MVC?

You can implement error handling filters in ASP.NET MVC by creating a custom action filter that inherits from ActionFilterAttribute. This allows you to override the OnActionExecuted method to handle exceptions.

Can you show me a code example of a custom error handling filter?

Sure! Here's a simple example:

public class CustomErrorFilter : ActionFilterAttribute
{
    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
        if (filterContext.Exception != null)
        {
            // Log the exception or handle it
            filterContext.ExceptionHandled = true;
            filterContext.Result = new ViewResult { ViewName = "Error" };
        }
    }
}

How do I register this filter globally?

You can register the filter globally in the FilterConfig.cs file like this:

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
    filters.Add(new CustomErrorFilter());
}

What if I want to handle different types of exceptions differently?

You can check the type of the exception in your filter and handle it accordingly. For example, you can use a switch statement to differentiate between exception types.