Private Sub DataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick
Dim r As New DataGridViewRow
If DataGridView1.Rows.Count > 0 Then
r = DataGridView1.Rows(e.RowIndex)
TextBox1.Text = r.Cells(0).Value
TextBox2.Text = r.Cells(1).Value
TextBox3.Text = r.Cells(2).Value
price.Text = r.Cells(3).Value / r.Cells(2).Value
End If
End Sub