Catching base Exception class in .NET

Question

I keep hearing that

catch (Exception ex)

Is bad practise, however, I often use it in event handlers where an operation may for example go

Answer 1

It is bad practice in the sense that you shouldn't do it everywhere.

In this case, I would consider it the only reasonable solution as your exception could be truly anything. The only possible improvement would be to add extra handlers before your catch everything for specific error cases where you could do something about the exception.