http://msmvps.com/blogs/peterritchie/archive/2008/07/15/nested-types.aspxRecently Michael Features blogged about nested types . The title was almost &quot;nested types considered harmful&quot;. I don&#39;t agree. I don&#39;t agree that they&#39;re any more harmful than any other C# construct (except goto...). Nested typesenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/peterritchie/archive/2008/07/15/nested-types.aspx#1641004Tue, 15 Jul 2008 23:25:53 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1641004Steve<p>I&#39;ve to agree with you on this one. I&#39;ve used them before to implement the Null patterns</p> <p>public abstract class Stream</p> <p>{</p> <p>....</p> <p>public static readonly Stream Null = new NullStream();</p> <p>private class NullStream : Stream { ... }</p> <p>}</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1641004" width="1" height="1">http://msmvps.com/blogs/peterritchie/archive/2008/07/15/nested-types.aspx#1640916Tue, 15 Jul 2008 15:29:29 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1640916DotNetKicks.com<p>You&#39;ve been kicked (a good thing) - Trackback from DotNetKicks.com</p> <img src="http://msmvps.com/aggbug.aspx?PostID=1640916" width="1" height="1">