OOP in vb.net and Oracle

We need for a project to work with oracle and classes. The problem is how to put information from the oracle database into objects of the classes and how to write information from textboxes into objects of the classes and then write these objects in the database?

Does anyone have some example program of working with objects and databases? I have been searching the internet but couldn't find it.

Thanks in advance !!!

Use ADO.Net to retrieve the data, then just stick it into your classes using code.