Activator and generic interface problem

Question

I have a generic interface:

interface ITest<T>
{
        T ExecutionResult { get; set; }
       
        void Init();

        T Execute();
}

also i have few classes:

public class TestClass1: ITest<TestResponse1>
{
// ITest methods
....
}

public class TestClass2: ITest<TestResponse2>
{
// ITest methods
....
}


Now in the code I have method which says:


//type is Type of TestClass1 or TestClass2
public void Start(Type type)
{
   Type basicType = Type.GetType(test.Type);
   Type genericType = basicType.BaseType.GetGenericArguments()[0];
   // and I need to do something like this:
   ITest<genericType> obj = (ITest<genericType>)Activator.CreateInstance(basicType);
   //problem is this genericType
}


Is anyone who knows how to implement this Activator?

Thanks

Answer 1

Take a look at the FormFactory class in this thread.

You will need to cast your instance object to an inherited type.
Like a concrete base class, an abstract class, or even better an interface.

"Code to composition, not inheritance."  You are coding to inheritance.

Rudy   =8^D

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