I am to develop a quiz application.
DETAILS,
1. there is a table containing the following fields(questions,optionA,optionB,optionC,optionD and Answer)

2. the interface has one label and four radio buttons. I bound these to the table respectively

3. the challenge is how to validate the selected radio button against the "answer" fields. and then stepping forward for the next iteration while keeping count of the correct and wrong answer.

I am working on basically the same thing with 16 questions in a single page Form, using radiobuttons (A,B,C,D) and a single submit button at the bottom of the page. I have validation figured out and will post the code here this evening. My issue is getting CRUD (Create, Read, Update and Delete), specifically Create(Insert) to insert all the selections into my database table. So hopefully we can both work this all out here.

We may have different approaches to the exam.
My online exam presents the user with one single page Form (trying to keep it "simple") displaying 16 multiple choice questions (A,B,C,D) with a comment textarea below each question. I am using RadioButtonList for the selections. Each RadioButtonList has a separate ID with ListItem for each radiobutton. There is a single submit button at the very bottom after the last question. Upon clicking the button, validation checks to make sure a selection has been made (in other words ALL questions must be answered before submission is valid) for each question. If all questions are answered the user is sent to another page where the questions along with the selected answers and comments are displayed. My next step is to get all the selections inserted into my database table, which is proving to be THE challenge.

Check out my code here: Multiple Choice Online Exam

I felt I needed to reply to my own post here and I hope others can benefit from this.
I now realize I need to write C# code in my code behind file for my quiz form to first connect to my SQL server (CommandBuilder, DataAdapter) database table and provide CRUD for my quiz.
While GridView and DetailsView "work" for basic CRUD functionality, the end user interface is basically the same every time. They DO however, provide and guide you with the database connectionstring and other useful code which can be used in your C# hard coding.
While GridView and DetailsView assist and validate your database connection for basic CRUD, you're left on your own if you want to design a user interface outside of their "wizard sandbox" with C# coding.
While there's a LOT going on "under the hood" with Visual Studio 2010, don't expect the wizards to get it ALL done for you without a considerable amount of C# coding!