>>>Did no one look at this (other than Gregory who replied already)?!?!?
>>
>>You may have noticed that extension methods are a pet of mine
>
>You're really good at it! Can you quickly explain where syntax in it - I was learning Extension methods recently while learning LINQ stuff, but I already forgot a bit.


What's happened to your google capabilities ?

The WHERE restricts the classes it applies to.



See possible clauses : http://msdn.microsoft.com/en-us/library/d5x73970.aspx
They can be combined - it's an AND combination

If you want to use eg between/max, .., you want the type to implement IComparable(T)

public static bool Between<T>(this T s, T s1, T s2) where T : IComparable<T>

public static T Max<T>(params T[] array) where T : IComparable<T>

For an InList you'll need IEquatable(T)

public static bool InList<T>(this T s, params T[] array) where T : IEquatable<T>
		{
			return array.Contains(s);
		}