refer this.. :)
http://www.dotnetfunda.com/codes/show/1849/how-to-use-left-right-outer-join-in-linq
http://www.codeproject.com/Articles/488643/LinQ-Extended-Joins
http://www.dotnet-tricks.com/Tutorial/linq/UXPF181012-SQL-Joins-with-C
http://codingsense.wordpress.com/2009/03/08/left-join-right-join-using-linq/
Regards,
Nirav Prabtani (Senior Web Developer)
Email : niravjprabtani@gmail.com
blog : niravprabtani.blogspot.in