Composite Key Dictionary

Question

I have some objects in List, let\'s say List and MyClass has several properties. I would like to create an index of the list based on 3 properti

Answer 1

Another solution to the ones already mentioned would be to store some kind of list of all keys generated so far and when a new object is generated you generate it's hashcode (just as a starting point), check if it's already in the list, if it is, then add some random value etc to it until you've got a unique key, then store that key in the object itself and in the list and return that as the key at all times.