How to filter rows and select desire columns from client side?

You cannot make your method generic, you cannot pass delegate as parameter and you probably cannot pass expression tree as parameter as well because I think it is by default not serializable. You should use some API which already do this for you - check WCF Data Services or Expression Tree Serialization.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.