Java to C#

It is old but you can download the book in the link below for Java to C# conversion code samples and the Microsoft Petshop application is now in version 4 it is also a Java to c# conversion.  So start with the book and look for existing code for your conversion.

http://www.microsoft.com/downloads/details.aspx?familyid=5fba8e7a-b896-4e5f-b3c0-fcf7ff1b9d29&displaylang=en