Which design approach is best suited for this kind of problem

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Hi,
I am trying to come up with a solution for below problem and not sure how to approach it without making client depended on concrete classes. Problem statement is as below

"I have a list of a product say A,B,C,D. A has 3 property named x,y and z and 1 function F1. product B has 4 property named x,y,z and p and 2 function named F1 and F2 and so on for product C also has 4 property named x,y,z and p and 2 function named F1 and F3. and product D has has 4 property named x,y,z and p and 2 function named F1 and F4.

Now because of this i can not have a common interface or abstract classes because class B have one additional function and C and D have one function which is different than B and which is common.

Is there any possible solution using which i can avoid this ? Any suggestion would be highly appreciated.

What I have tried:

I thought of Having conman code in one abstract class and than creating concrete class with additional function which is contain the abstract class (as a dependency). But in that case my client will be forced to be depended on concrete class.

Posted 2-Jul-17 5:52am

CS2011

Updated 2-Jul-17 8:06am

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pt1401 · Answer 1 · 2017-07-02T06:45:00

If I'm reading the pattern in the classes correctly, wouldn't something as simple as this do?
Or you could even pub p into a separate interface & inherit it in B,C,D...

C#

public interface IA
{
    int x { get; set; }
    int y { get; set; }
    int z { get; set; }
    int F1();
}

public interface IB
{
    int p { get; set; }
    int F2();
}

public interface IC
{
    int p { get; set; }
    int F3();
}

public interface ID
{
    int p { get; set; }
    int F4();
}

public class A : IA
{
    public int x { get; set; }
    public int y { get; set; }
    public int z { get; set; }

    public int F1()
    {
        return 0;
    }
}
public class B : IA, IB
{
    public int x { get; set; }
    public int y { get; set; }
    public int z { get; set; }
    public int p { get; set; }

    public int F1()
    {
        return 0;
    }
    public int F2()
    {
        return 0;
    }
}

public class C : IA, IC
{
    public int x { get; set; }
    public int y { get; set; }
    public int z { get; set; }
    public int p { get; set; }

    public int F1()
    {
        return 0;
    }
    public int F3()
    {
        return 0;
    }
}

public class D : IA, ID
{
    public int x { get; set; }
    public int y { get; set; }
    public int z { get; set; }
    public int p { get; set; }

    public int F1()
    {
        return 0;
    }
    public int F4()
    {
        return 0;
    }
}

RickZeeland · Answer 2 · 2017-07-02T08:06:00

Solution 2

Maybe you can use a Dictionary similar to that in the answer to this StackOverflow question: reflection - C# Using Activator.CreateInstance - Stack Overflow[^]

Posted 2-Jul-17 8:06am

RickZeeland