How to find or filter in ADO.NET with VB.NET

[Marta6418]

Good afternoon
I'm trying to upgrade a VB6 + ADO (SQL Server) application to VB.NET and taking advantage of the ADO.NET speed.
My problem is how can I, using ADO.NET SqlDataReader, do something like :

myRecordset.Mov efirst
myRecordset.Fil ter="myField=" & myValue

or

myRecordset.Mov efirst
myRecordset.Fin d "myField=" & myValue

Thanks in advance