Why catch and rethrow an exception in C#?

Question

I\'m looking at the article C# - Data Transfer Object on serializable DTOs.

The article includes this piece of code:

public static string Se         


        

Answer 1

You don't want to throw ex - as this will lose the call stack. See Exception Handling (MSDN).

And yes, the try...catch is doing nothing useful (apart from lose the call stack - so it's actually worse - unless for some reason you didn't want to expose this information).