Attributes displaying lists

[MBursill]

I have a UserControl that contains the property SelectedItem. I want to expose that property at design time. The property is of type SomeClass (just an example). At design time I want the user to be able to set the SelectedItem property to ONLY one of the instances of SomeClass contained in a List. How can I go about doing this?

public class MyTestControl : UserControl
{
private List myList = new List();
SomeClass _mySelectedItem;

public MyTestControl()
{
    // populating the list with random stuff. Each instance of SomeClass
    // will override ToString which is what I would like to have show up
    // in the property window (see below)
    myList.Add(new SomeClass());
    myList.Add(new SomeClass());
    myList.Add(new SomeClass());
}

\[Browsable(true)\]
// what could go here to make this property display all
// the items of myList as options to choose from in the
// property window at design time?
public SomeClass SelectedItem
{
    get
    {
        return \_mySelectedItem;
    }

    set
    {
        \_mySelectedItem = true;
    }
}

}

-Mike.