DataTable dtPay = dgvPay.DataSource as DataTable;

            DataTable dtReceive = dgvReceive.DataSource as DataTable;

            if (dtPay != null)

            {

                if (dtReceive.Rows.Count == dtPay.Rows.Count) 

                {

                    for (int i = 0; i < dtPay.Rows.Count; i++) 

                    {

                        dtReceive.Rows[i]["IsOriginal"] = dtPay.Rows[i]["IsOriginal"];

                    }

                }

                else if (dtPay.Rows.Count > dtReceive.Rows.Count) 

                {

                    int j = 0;

                    for (int i = 0; i < dtPay.Rows.Count; i++) 

                    {

                        for (; j < dtReceive.Rows.Count; ) 

                        {

                            dtReceive.Rows[j]["IsOriginal"] = dtPay.Rows[i]["IsOriginal"];

                            j++;

                            break;

                        }

                    }

                }

                else if (dtPay.Rows.Count < dtReceive.Rows.Count) 

                {

 &n