Some Userful links, must share this.....

1. Find an item in List by LINQ?

 http://stackoverflow.com/questions/1175645/find-an-item-in-list-by-linq

 2. Using LINQ to Objects in C#

http://www.codeproject.com/Articles/26743/Using-LINQ-to-Objects-in-C

3. 101 LINQ Samples

http://code.msdn.microsoft.com/101-LINQ-Samples-3fb9811b