Hash Codes for Immutable Types

Question

Are there any considerations for immutable types regarding hash codes?

Do I have to generate it once, in the constructor?

How would you understand that the hash code has been fixed? Do I need to? If so, is it better to use the HashCode property instead of the GetHashCode method? Will there be a flaw in this? (Given that both will work, but the property will be recommended).

Answer 1

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HashCode GetHashCode?

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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If profiling really shows that GethashCode is taking a significant amount of time, you might need to cache it as a fix.

But I would not consider this a part of ordinary practice.