Solved

C# newbie question

Posted on 2009-05-19
5
179 Views
Last Modified: 2012-05-07
Hi.  My question is that if I have an Data Access Layer that writes to a DB, then a Rules layer that inherits the DAL, then a presentation layer that inherits the Rules Layer, how can I keep the methods in the DAL hidden from the presentation layer??
0
Comment
Question by:suicehockey44
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 11

Expert Comment

by:saragani
ID: 24422714
0
 

Author Comment

by:suicehockey44
ID: 24422752
I see. But doesn't the Sealed class eliminated the possibility of any inheritance??? I want the Rules layer to inherit the DAL.  BUT, I do not want the other class, which inherits the Rules Layer to have access to the methods in the DAL...perhaps I am not following sealed closely enough.
0
 
LVL 11

Accepted Solution

by:
saragani earned 500 total points
ID: 24422769
Oops sorry. I didn't read your question right... You want to prevent the inheritance of functions (not classes).. My bad.

It cannot be done... Any public method is being inherited by the child class.


The only way I can thing of is that the child class will implement an interface and then then you work with the presenter, you will always work with it using an interface object.
0
 

Author Comment

by:suicehockey44
ID: 24422801
Ok sorry I should've been more clear. Thank you and I will try using an interface.
0
 
LVL 11

Expert Comment

by:saragani
ID: 24422838
I've looked for a short example on the Internet for you:
http://stackoverflow.com/questions/106383/c-can-publicly-inherited-methods-be-hidden-e-g-made-private-to-derived-class


And you've been clear enough...  it's just me ending 11 hours of work in front of the computer and visual studio.
(Lucky me, this day is over :-) )
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article describes a simple method to resize a control at runtime.  It includes ready-to-use source code and a complete sample demonstration application.  We'll also talk about C# Extension Methods. Introduction In one of my applications…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Come and listen to Percona CEO Peter Zaitsev discuss what’s new in Percona open source software, including Percona Server for MySQL (https://www.percona.com/software/mysql-database/percona-server) and MongoDB (https://www.percona.com/software/mongo-…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question