CSharp Performance – Cast vs Interface <a href="http://search.twitter.com/search?q=%23dotnet">#dotnet</a> <a href="http://search.twitter.com/search?q=%23csharp">#csharp</a> <a href="http://search.twitter.com/search?q=%23tech">#tech</a> <a href="http://search.twitter.com/search?q=%23performance">#performance</a> <a href="http://bit.ly/D7c1m">http://bit.ly/D7c1m</a>.