vb.net 2005 express

I havnt posted in a while but I have been busy doing the tutorials on the
SQL Express and the first VB.net videos.
( Basically started from scratch and gave up the idea of mdb tables and
moving to SQL Express ).

One thing I cant seem to find / figure out is this.

I have dragged a table onto my form which in term binded everything for me
and also put a navigator.
Lets say this table has
   ID ( unique key ) - Auto Increment
   Name varchar(20) - not nullable

Then I added the Name field to the form as well ( so its binded as well).

As i click on teh add buttons on the binding navigator, the field i added
also updates.
If I click on the add button within the binding navigator, the field in the
datagrid jumps to the bottom with a
new 'ID' that has been autoincremented and the Name field is blank awaiting
input.

I can now either edit the field in the datagrid or the field.
Once I do this - i click save and all is well.

How do I 'code' the add button manually in a command button.
I cant seem to figure out how to look at the binding navigators code.
   -so everything "blanks" on the textboxes, the navigator goes to the
bottom and ready for input.

Thanks

Miro