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    <p>MSDN has a good <a href="http://msdn.microsoft.com/en-us/library/aa288467(VS.71).aspx" rel="nofollow noreferrer">example</a> of how to do it:</p> <pre><code> public override bool Equals(object o) { try { return (bool) (this == (DBBool) o); } catch { return false; } } </code></pre> <p>Then you overload the == and !=:</p> <pre><code>// Equality operator. Returns dbNull if either operand is dbNull, // otherwise returns dbTrue or dbFalse: public static DBBool operator ==(DBBool x, DBBool y) { if (x.value == 0 || y.value == 0) return dbNull; return x.value == y.value? dbTrue: dbFalse; } // Inequality operator. Returns dbNull if either operand is // dbNull, otherwise returns dbTrue or dbFalse: public static DBBool operator !=(DBBool x, DBBool y) { if (x.value == 0 || y.value == 0) return dbNull; return x.value != y.value? dbTrue: dbFalse; } </code></pre> <p>And don't forget to overload the GetHash method.</p> <p>Edit:</p> <p>I wrote the following quick sample for using reflection in a compare. This would have to be much more comprehensive, I might try doing a blog on it if people want me to:</p> <pre><code>public class TestEquals { private int _x; public TestEquals(int x) { this._x = x; } public override bool Equals(object obj) { TestEquals te = (TestEquals)obj; if (te == null) return false; foreach (var field in typeof(TestEquals) .GetFields(BindingFlags.NonPublic | BindingFlags.Instance)) { if (!field.GetValue(this).Equals(field.GetValue(te))) return false; } return true; } } </code></pre>
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    1. POShould I Overload == Operator?
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    1. USYuriy Faktorovich
    1. USYuriy Faktorovich
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    1. CO+1 for the reflection solution (thats the second time you post a minute before me :)
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      1. USAmirshk
    2. COAnd how would you implement GetHashCode() using a reflection-based approach like this?
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      1. USJohn Rayner
    3. CO@John: Why not using reflection in combination with Jon Skeet's answer: http://stackoverflow.com/questions/263400#263416
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      1. USYuriy Faktorovich
 

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