copy selected rows in datagridview to another datagridview

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C#

C#4.0

I have a little problem with copying selected rows in datagridview to another datagridview on this code that I have I dont get values inside copied rows

foreach (DataGridViewColumn c in dg1.Columns)
            {
                dg.Columns.Add(c.Clone() as DataGridViewColumn);
            }

            foreach (DataGridViewRow r in dg1.SelectedRows)
            {
                int index = dg.Rows.Add(r.Clone() as DataGridViewRow);
                foreach (DataGridViewCell o in r.Cells)
                {
                    dg.Rows[index].Cells[o.ColumnIndex].Value = o.Value;
                }
            }