How do I use try-catch in ASP.NET MVC?

How do I use try-catch in ASP.NET MVC?

In ASP.NET MVC, you can use try-catch blocks to handle exceptions that may occur during the execution of your code. You typically wrap the code that might throw an exception in a try block and handle the exception in the catch block.

Can you give me an example of how to implement it?

Sure! Here's a simple example:

public ActionResult MyAction()
{
    try
    {
        // Code that may throw an exception
        var data = GetData();
        return View(data);
    }
    catch (Exception ex)
    {
        // Handle the exception
        ViewBag.ErrorMessage = ex.Message;
        return View("Error");
    }
}

What types of exceptions should I catch?

It's best to catch specific exceptions that you expect might occur, such as NullReferenceException or SqlException. Avoid catching general exceptions unless necessary, as it can hide issues.

How can I log the exceptions that occur?

You can use logging frameworks like NLog or log4net to log exceptions. In the catch block, you can log the exception details before handling it.