public bool suaPT(ePhieuThu et)
        {
            Phieu_thu t = new Phieu_thu();

            t.hoTen     = et.HoTen;
            t.ngayPH    = et.NgayPH;
            t.soHD      = et.SoHD;
            t.soPH      = et.SoPhieu;
            t.soTienThu = Convert.ToDecimal(et.SoTienThu);
            return(tdal.suaPT(t));
        }
        public ePhieuThu getTho(string ma)
        {
            ePhieuThu et = new ePhieuThu();
            Phieu_thu t  = new Phieu_thu();

            t            = tdal.getPT(ma);
            et.HoTen     = t.hoTen;
            et.NgayPH    = t.ngayPH;
            et.SoHD      = t.soHD;
            et.SoPhieu   = t.soPH;
            et.SoTienThu = Convert.ToDouble(t.soTienThu);
            return(et);
        }
        public List <ePhieuThu> getAllPhieuThu()
        {
            List <ePhieuThu> listet = new List <ePhieuThu>();
            List <Phieu_thu> listt  = new List <Phieu_thu>();

            listt = tdal.getAllPT();
            foreach (Phieu_thu t in listt)
            {
                ePhieuThu et = new ePhieuThu();
                et.HoTen     = t.hoTen;
                et.NgayPH    = t.ngayPH;
                et.SoHD      = t.soHD;
                et.SoPhieu   = t.soPH;
                et.SoTienThu = Convert.ToDouble(t.soTienThu);
                listet.Add(et);
            }
            return(listet);
        }