In c# I can write the following piece of code:

public class SomeClass
{
    public interface IMyInterface
    {
        DialogResult ShowDialog();
    }
}

public partial class Form1 : Form, SomeClass.IMyInterface 
{
}

This works because c# automatically “maps” the ShowDialog() method of the interface to the method with the same name implemented in Form.

In VB I have to explicitly declare that a method in the class implements an interface method:

Public Function ShowDialog() As DialogResult Implements SomeClass.ShowDialog
    '...
End Function

But this way I’m redefining an already defined method.

Of course I can create a helper function:

Public Function IMyInterface_ShowDialog() As DialogResult Implements SomeClass.ShowDialog
    Return ShowDialog()
End Function

but I wonder if this is the best practice in this case, or if I can somehow refer to the already implemented method.