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    <blockquote> <p>If we could upgrade our version of .Net, I would just return a Tuple&lt;>, but that's not going to be an option for some time yet.</p> </blockquote> <p>Why wait? It's not like a tuple is a complicated thing. Here's the code for a 3-tuple.</p> <pre><code>public struct Tuple&lt;TItem1, TItem2, TItem3&gt; { public Tuple(TItem1 item1, TItem2 item2, TItem3 item3) { this = new Tuple&lt;TItem1, TItem2, TItem3&gt;(); Item1 = item1; Item2 = item2; Item3 = item3; } public static bool operator !=(Tuple&lt;TItem1, TItem2, TItem3&gt; left, Tuple&lt;TItem1, TItem2, TItem3&gt; right) { return left.Equals(right); } public static bool operator ==(Tuple&lt;TItem1, TItem2, TItem3&gt; left, Tuple&lt;TItem1, TItem2, TItem3&gt; right) { return !left.Equals(right); } public TItem1 Item1 { get; private set; } public TItem2 Item2 { get; private set; } public TItem3 Item3 { get; private set; } public override bool Equals(object obj) { if (obj is Tuple&lt;TItem1, TItem2, TItem3&gt;) { var other = (Tuple&lt;TItem1, TItem2, TItem3&gt;)obj; return Object.Equals(Item1, other.Item1) &amp;&amp; Object.Equals(Item2, other.Item2) &amp;&amp; Object.Equals(Item3, other.Item3); } return false; } public override int GetHashCode() { return ((this.Item1 != null) ? this.Item1.GetHashCode() : 0) ^ ((this.Item2 != null) ? this.Item2.GetHashCode() : 0) ^ ((this.Item3 != null) ? this.Item3.GetHashCode() : 0); } } </code></pre> <p>As you can see, it's no big deal. What I've done on my current project is implement 2, 3 and 4-tuples, along with a static <code>Tuple</code> class with <code>Create</code> methods on it, which exactly mirror the .NET 4 tuple types. If you're really paranoid you can use reflector to look at the dissassembled source code for the .NET 4 tuple, and copy it verbatim</p> <p>When we eventually upgrade to .NET 4, we'll just delete the classes, or <code>#ifdef</code> them out</p>
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    1. COIt Has Been Decided that I not create new generic containers for passing information around. If I really need to return more than one value, I'm to create a type with a meaningful typename and meaningful field names. (Don't ask me why Tuple will suddenly be okay as soon as it's a .net defined type. That's an argument I did not win.)
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    2. COlol. It sounds like you're working in a fairly backward place... Are you even allowed to use Func<x,y,z> or any of that kind of thing?
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    3. COGenerics are fine for classes and methods-- for instance, I might have a CustomWeirdSortedCollection<IWidget>. The coding policy just says I can't create data-only generic containers. My guess is the policy writer was traumatized by some previous bad experience, with code that overused nameless containers and anonymous types where it should have had classes. I want to say "backward" is too harsh a description for this place, so I'd best not admit that they only upgraded to .Net 2 this past October.
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