John,

Have you had a look at Codemine?


>Hi,
>I am very interested and willing to develop 3-tier app. I have read many articles and go thru samples code. I found that, most of the articles/sample code only illutrate simple entity such as customer, product for easier understanding. It is fine.
>However, I still not very clear on designing data class that may involve 2 or more tables such as Order (Order + OrderDetails).
>There are more things that I would like to clarify but I just don't know how to start. For example,
>1. How to have A DATA CLASS that acess multiple tables? View?
>2. If client want to increase the product unit price, what should business and data object do? Should I have increaseprice methos in data class?
>n etc.
>
>Pls provide more info.
>Real world sample will be appreciated.
>
>Thank you