C#

Okay,

So do you want use sql function like Count(),SUM(), MIN()

and expression like Where,order by etc.

Then you can use linq to sql which have DataContext class and you can perform operation on .dbml file's context class.

http://www.c-sharpcorner.com/UploadFile/3d39b4/simple-select-insert-update-and-delete-using-linq-to-sql/

http://www.c-sharpcorner.com/UploadFile/3d39b4/aggregate-functions-in-linq-to-sql/

http://www.c-sharpcorner.com/UploadFile/3d39b4/inner-join-cross-join-and-left-outer-join-with-linq-to-sql/

Thanks

no sir it's not my question becaue i dont want create any connection and nor i want use any sql query.

as per my thinking

You need to create a class library which under a single namespace.

It has several classes according to function and queries which you want perform and these classes implement Connection,Command classes/interface as per provider.

Then you can use own namespace for access classes then access methods according requirements from these classes.

Namespace is a logical collection of classes and these classes have method/properties etc. So your actual functionality will be through classes.

For example

System.Data.SqlClient;

namespace has several method for Connection and queries when we are working with Sql Server. like

SqlConnection con = new SqlConnection();//Connection
  SqlCommand cmd = new SqlCommand();//Queries
  SqlDataAdapter adp = new SqlDataAdapter();//Queries

But you can use enterprises libraries that has several methods for connection, queries and store procedure. please go through below link that has resource which explain that how can use libraries.
http://www.c-sharpcorner.com/tags/1/enterprises-libraries

You can download it

http://msdn.microsoft.com/en-us/library/dn169621.aspx

Documentation

https://entlib.codeplex.com/releases/view/64243


Thanks

I think there is no option to do above task .

by ... microsoft

Regards,
Ravi