Hi,
Here is some code to navigate to the next item in datatable,hope it helps.If you want more ,you can find in MSDN about bindingsource and position.
Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) _
Handles button1.Click
' If you are not at the end of the list, move to the next item
' in the BindingSource.
If BindingSource1.Position + 1 < BindingSource1.Count Then
BindingSource1.MoveNext()
' Otherwise, move back to the first item.
Else
BindingSource1.MoveFirst()
End If
' Force the form to repaint.
Me.Invalidate()
Sub