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POValue vs Reference
 

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    <p>What decision should I take about Equals(), ReferenceEquals(), and == from the following results? What do they produce actually?</p> <pre><code>#region int integer = 1; int integer2 = integer; bool referenceEquality = (integer == integer2);//true bool valueEquality = integer.Equals(integer2);//true bool valueEqualityMore = object.Equals(integer, integer2);//true bool valueEqualityMoreMore = object.ReferenceEquals(integer, integer2);//false #endregion #region int integer = 1; int integer2 = 1; bool referenceEquality = (integer == integer2);//true bool valueEquality = integer.Equals(integer2);//true bool valueEqualityMore = object.Equals(integer, integer2);//true bool valueEqualityMoreMore = object.ReferenceEquals(integer, integer2);//false #endregion #region MyClass obj = new MyClass(1, "Hello"); MyClass obj2 = obj; bool referenceEquality = (obj == obj2);//true bool valueEquality = obj.Equals(obj2);//true bool valueEqualityMore = object.Equals(obj, obj2);//true bool valueEqualityMoreMore = object.ReferenceEquals(obj, obj2);//true #endregion #region MyClass obj = new MyClass(1, "Hello"); MyClass obj2 = new MyClass(1, "Hello"); bool referenceEquality = (obj == obj2);//false bool valueEquality = obj.Equals(obj2);//false bool valueEqualityMore = object.Equals(obj, obj2);//false bool valueEqualityMoreMore = object.ReferenceEquals(obj, obj2);//false #endregion </code></pre> <p>Hell! I understand nothing.</p> <p>To me referenceEquals() of the 1st block should return true. == in the second block should return false (as the references are different). And, both of the Equals() in the 4th block should return true (as their values are same).</p>
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    1. COCan you narrow down your question, specifically: 1) which of these results do you find surprising 2) what decision are you talking about
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    2. COGood comment. See the update.
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    3. COreferenceEquals compare object instances reference, since the int values are boxes to two different objects they have different reference. == by default compare references so the two instances of MyClass, even having same state, have different reference since they are two different objects.
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