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Make them Sealed:<br />
<a href="http://msdn.microsoft.com/en-us/library/88c54tsw(VS.71).aspx" rel="ugc">http://msdn.microsoft.com/en-us/library/88c54tsw(VS.71).aspx</a>
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Make them Sealed:
http://msdn.microsoft.com/en-us/library/88c54tsw(VS.71).aspx [http://msdn.microsoft.com/en-us/library/88c54tsw(VS.71).aspx]

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I see. But doesn't the Sealed class eliminated the possibility of any inheritance??? I want the Rules layer to inherit the DAL. &nbsp;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.
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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.

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Ok sorry I should've been more clear. Thank you and I will try using an interface.
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Ok sorry I should've been more clear. Thank you and I will try using an interface.

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I've looked for a short example on the Internet for you:<br />
<a href="http://stackoverflow.com/questions/106383/c-can-publicly-inherited-methods-be-hidden-e-g-made-private-to-derived-class" rel="ugc">http://stackoverflow.com/questions/106383/c-can-publicly-inherited-methods-be-hidden-e-g-made-private-to-derived-class</a><br />
<br />
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And you've been clear enough... &nbsp;it's just me ending 11 hours of work in front of the computer and visual studio.<br />
(Lucky me, this day is over :-) )
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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 [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 :-) )

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Hi. &nbsp;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??
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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??

C# newbie question

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).