Why use the 'ref' keyword when passing an object?

Question

If I am passing an object to a method, why should I use the ref keyword? Isn\'t this the default behaviour anyway?

For example:

class Program
{
    s         


        

Answer 1

You need to distinguish between "passing a reference by value", and "passing a parameter/argument by reference".

I've written a reasonably long article on the subject to avoid having to write carefully each time this comes up on newsgroups