As you know, GetHashCode returns a semi-unique value that can be used to identify an object instance in a collection. As a good practice, it is recommended to override this method and implement your own.
My question is - do you override this method when working on custom objects? If so, what algorithm do you use to generate the unique ID?
I was thinking about generating a GUID and then getting integer data from that identificator.
When you override GetHashCode() you also need to override Equals(), operator== and operator!= . And be very careful to meet all the requirements for those methods.
The guidelines are here on MSDN. Most important quote:
It is not a good idea to override operator == in mutable types.