// Private constructor, the external creation is controlled by the factory methods below
private ProperOrderedCollection(IEnumerable <T> original, ProperOrderedCollection <T> parent,
IComparer <T> comparer)
{
this.original = original;
this.parent = parent;
this.comparer = comparer;
}
// We're continuing to require the ordered field to implement IComparable & are using the
// SimpleComparer. A full implementation would allow us to pass something like a
// Func<T, T, int> so we could specify an ordering function in the call
public static IOrderedEnumerable <T> ProperOrder <T, TOrderBy>(this IEnumerable <T> original,
Func <T, TOrderBy> selector) where TOrderBy : IComparable <TOrderBy>
{
IComparer <T> comparer = new SimpleComparer <T, TOrderBy>(selector);
return(ProperOrderedCollection <T> .Create(original, comparer));
}
