private void tsbedit_Click(object sender, EventArgs e)
        {
            if (gridView1.RowCount > 0)
            {
                string guid = ((DataRowView)(gridView1.GetFocusedRow())).Row[0].ToString();


                frmOtherSellOrderAdd frmOtherSellOrderAdd = new frmOtherSellOrderAdd();
                frmOtherSellOrderAdd.EditBill(guid);
            }
        }
        private void btnAdd_Click(object sender, EventArgs e)
        {
            frmOtherSellOrderAdd frmOtherSellOrderAdd = new frmOtherSellOrderAdd();

            frmOtherSellOrderAdd.AddBill();
        }