DataGridView - Setting Focus on a Cell

VB 2010 (Professional)

I'm using an unbound DataGridView for data entry.  The first column is the row number, and will automatically be set when data is first entered in a row.

To that end, I set the first column to ReadOnly.  However, when tabbing from column to column, column 0 still gets focus (nothing can be typed in, though, which is right).  What I would like is for the tabbing to skip over column 0 and go directly to column 1, ready for user input.

So I added code to the CellEnter event as such:

Private Sub DataGridView1_CellEnter(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEnter
    If e.ColumnIndex = 0 Then
        'DataGridView1.Rows(e.RowIndex).Cells(1).Selected = True 'Didn't Work
        DataGridView1.CurrentCell = DataGridView1.Item(1, e.RowIndex) 'Didn't Work too
    End If
End Sub

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As you can see in the sample code, I tried two different methods, but neither works.  Both throw the error:

Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.

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So, how do I do what I want to do?