How to delete an EditText ?

:BangHead:
Hello. When i programmed in Vb and I wanted to delete an object or any variable I wrote something like this

Object = Nothing

If I have created an Edittext :

Dim EditText1 as EditText
EditText1.inicialize (EditText1)
Activity.Adview (EditText1, 100,100,50,50)

How can i to eliminate completely, and not only to change his properties Enable and Visible to False, but really delete during the program runs.

Thanks to all.

Gracias a todos.