As your query access ADO.net doesn't has meanniing , ADO.NET provides functionality to developers writing managed code so u can access database record by using ADO.net in .net development environment.
and this is not one thing this combine a library for provide all functionallity for access data by using like Systme.SqlClient.Data, System.SqlClient etc.
and example of ADO.net code is every where on net just need to googleit for that
http://msdn.microsoft.com/en-us/library/h43ks021(VS.71).aspx