using System.Collections.Generic;

​

public interface Itest

{

    int test { get; set; }

    int test2 { get; set; }

}

​

public class KTest : Itest

{

    public int test { get; set; }

    public int test2 { get; set; }

}

​

public class LTest : Itest

{

    public int test { get; set; }

    public int test2 { get; set; }

}

​

public abstract class UseTest

{

    public abstract void Populate(IList<Itest> inList);

}

​

public class KUseTest : UseTest

{

    public override void Populate(IList<Itest> inList)

    {

        inList.Add(new KTest());

        inList.Add(new KTest());

        inList.Add(new KTest());

    }

}

​

public class LUseTest : UseTest

{

    public override void Populate(IList<Itest> inList)

    {

        inList.Add(new LTest());

        inList.Add(new LTest());

        inList.Add(new LTest());

    }

}

​

public class TestCaseGeneric

{

    public void myfuncfortest()

    {

        IList<Itest> testList = new List<Itest>();

        var switchVar = 1;

        switch (switchVar)

        {

            case 1:

                new KUseTest().Populate(testList);

                break;

            case 2:

                new LUseTest().Populate(testList);

                break;

            default:

                break;

        }

    }

}