Best way to bubble up error message from callee to caller?

[John Dalberg]

Using C#.

I have a web form that creates a new class. The class gets records from a
database.

What's the best practice for error handling? Do you put a try/catch in the
form code that calls the class's function AND in the the class too? How do
you pass the error message from the class to the form to be displayed for
the user? The class can be used by multiple web pages.

In the class, do you catch the exception and throw it again for the caller
to get?

Or do you catch the exception in the class and return false as a failed
status to the caller and display an error message for a generic failure?

J.