title: C# Linq return SortedList
body: <p>How can I get Linq in C# to return a <a href="http://msdn.microsoft.com/en-us/library/system.collections.sortedlist.aspx" rel="noreferrer"><code>SortedList</code></a> given an <code>IEnumerable</code>? If I can't, is it possible to cast or transform the <code>IEnumerable</code> to a <code>SortedList</code>?</p>