In this article we will start with a basic LINQ to SQL example and then see how we can implement one-many and one-one relationship using 'Entityref' and 'EntitySet'. We have also attached a source which demonstrates the same in a practical manner.
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Previous LINQ,Silverlight,WCF,WPF and WWF articles
Below are some of my old articles which you would like to refer in case you are not acquainted with .NET 3.5 basic concepts.
This article talks about a complete 3 tier implementation using LINQ :- http://www.c-sharpcorner.com/UploadFile/shivprasadk/SaPe03262009072217AM/SaPe.aspx?ArticleID=f18c3c3b-523b-4c1c-9ad0-e51476115e4a
WCF FAQ series covering simple to advance concepts :- http://www.c-sharpcorner.com/UploadFile/shivprasadk/122345601022009064602AM/1223456.aspx?ArticleID=d88a04d5-633c-44f8-85fa-09941f2064dd
WPF and Silverlight FAQ series covering layout, animation and bindings. :- http://www.c-sharpcorner.com/UploadFile/shivprasadk/21FAQ04242009031713AM/21FAQ.aspx?ArticleID=1d54da18-1050-4832-905b-0b058a1313fb
Windows FAQ series covering state machines and sequential work flow in detail. :-http://www.c-sharpcorner.com/UploadFile/shivprasadk/12334512312008070235AM/123345.aspx?ArticleID=bd393908-36cc-45c0-b899-30aa44fcf64d