Bind Textbox to Unbound Datagridview Cell

I'm trying to bind a textbox to the current cell in an unbound datagridview.  There is no dataset.  I've tried:

TextBox1.DataBindings.Add(NewBinding("Text", DataGridView1.CurrentCell, "Value"))

with no luck.  Is what I'm trying possible?  If so please privide detailed example.  Thanks!

Donald Hofferber