What is the difference between throw and throw ex in C#?

What is the difference between throw and throw ex in C#?

In C#, 'throw' is used to rethrow the current exception while preserving the original stack trace, whereas 'throw ex' resets the stack trace to the point where 'throw ex' is called.

Can you give me an example of when to use each?

Sure! Use 'throw' when you want to handle an exception and then rethrow it without losing the stack trace. Use 'throw ex' if you want to throw a new exception and don't care about the original stack trace.

What are the implications of using throw ex?

Using 'throw ex' can make debugging harder because it loses the original stack trace, making it difficult to trace where the exception originated.

Is there a best practice for exception handling in C#?

Yes, it's generally recommended to use 'throw' to maintain the stack trace and provide better debugging information.