List of abstract class

Question

I have abstract class:

public abstract class MyClass
{
    public abstract string nazwa
    {
        get;
    }
}

And two classes which inherit from MyClass:

public class MyClass1 : MyClass
{
    public override string nazwa
    {
        get { return "aaa"; }
    }
}

public class MyClass2 : MyClass
{
    public override string nazwa
    {
        get { return "bbb"; }
    }
}

In another class I create List:

List<MyClass> myList;

Now I want to create

myList = new List<MyClass1>;

The compiler show an error:

Cannot implicitly convert type 'System.Collections.Generic.List<Program.MyClass1>' to 'System.Collections.Generic.List<Program.MyClass>'

I must be some easy way to convert it... I cannot find anything useful

Answer 1

You can create the list as the base type:

List<MyClass> myList = new List<MyClass>();

Which you can then add derived items to:

myList.Add(new MyClass2());