Accessibility of a Class

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Hello, I want to design a solution, but facing a problem because of limited knowledge of OOPs concept. My requirement is as follows

Assume I have 4 classes
Class A
Class B
Class C
Class D

I want object of class D can only be allowed to create, or class can only be accessible in Class C. Same Class C object and class itself can be allowed access and created in Class B. Class D should not have access to class B.
Same Class A should not have access to C, D. It only have access to B, and it can create object of B.

How we can implement with best possible architecture in C#.

With Best Regards.

Posted 23-Nov-13 9:59am

Mohit Vijay

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BillWoodruff 23-Nov-13 21:44pm

You could implement some form of "class hiding" ... adding a level of indirection to access them ... by nesting Classes, but I do not think you can implement what you describe here in C# .NET.

I can't imagine a case of program design that would require the type of Class relationships you describe here.

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-11-23T14:28:00

Solution 2

C# and .NET does not allow access constraints of this kind. The access rules are much simpler and are well described in MSDN:
http://msdn.microsoft.com/en-us/library/ms173121.aspx[^],
http://msdn.microsoft.com/en-us/library/vstudio/wxh6fsc7.aspx[^].

—SA

Posted 23-Nov-13 14:28pm

Sergey Alexandrovich Kryukov

Akinmade Bond · Answer 2 · 2013-11-23T11:20:00

Solution 1

Read

Multiple Inheritance in C#[^]

Introduction to inheritance, polymorphism in C#[^]

Inheritance[^]

Posted 23-Nov-13 11:20am

Akinmade Bond

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Sergey Alexandrovich Kryukov 23-Nov-13 20:35pm

Being useful, these links are totally irrelevant to the question.
—SA

agent_kruger · Answer 3 · 2013-11-23T18:26:00

Solution 3

or by using different namespaces you can deal with your problem

Posted 23-Nov-13 18:26pm

agent_kruger