What's the best strategy for Equals and GetHashCode?

Question

I\'m working with a domain model and was thinking about the various ways that we have to implement these two methods in .NET. What is your preferred strategy?

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Answer 1

Assuming that the instances are equal because the hash codes are equal is wrong.

I guess your implementation of GetHashCode is OK, but I usually use things similar to this:

public override int GetHashCode() {
    return object1.GetHashCode ^ intValue1 ^ (intValue2 << 16);
}