Overriding GetHashCode

GetHashCode.cs

public class MyValueObject:ValueObject<MyValueObject>
{
public int field1{get;}
public double field2{get;}
public string field3{get;}

public override int GetHashCode()
{
//don't forget to check fields for null
    unchecked 
    {
        int hash = (int) 2166136261;
        hash = (hash * 16777619) ^ field1.GetHashCode();
        hash = (hash * 16777619) ^ field2.GetHashCode();
        hash = (hash * 16777619) ^ field3.GetHashCode();
        return hash;
    }
}
//***************
}

One more interesting link
Value Object https://github.com/vkhorikov/LegacyProjects/blob/master/ACL/src/PackageDeliveryNew/Common/ValueObject.cs
and then it's enough to override the method GetEqualityComponents() like this
protected override IEnumerable GetEqualityComponents()
{
yield return field1;
yield return field2;
yield return field3;
}

and for arrays!
https://stackoverflow.com/questions/638761/gethashcode-override-of-object-containing-generic-array/639098#639098