public DataTable LayTuoiToiThieu_Select(DTO_TheDocGia dl)
 {
     return(xl.table_Select(" select TuoiToiThieu,TuoiToiDa,ThoiHanThe from QuyDinh where ID_QuyDinh=1"));
 }
 public DataTable TheDocGia_Select(DTO_TheDocGia dl)
 {
     return(xl.table_Select(" select ID_TheDocGia,Ten_LoaiDocGia,HoTen_DocGia,NgaySinh_DocGia,DiaChi_DocGia,Email_DocGia,NgayLapThe,NgayHetHan,TrangThai_TheDocGia from TheDocGia, LoaiDocGia where TheDocGia.ID_LoaiDocGia = LoaiDocGia.ID_LoaiDocGia  order by ID_TheDocGia desc"));
 }
 public void LapTheDocGia_INSERT(DTO_TheDocGia dl)
 {
     xl.table_Command("set dateformat dmy Insert into TheDocGia Values ('" + dl.ID_LoaiDocGia + "',N'" + dl.HoTen_DocGia + "','" + dl.NgaySinh_DocGia + "','" + dl.DiaChi_DocGia + "','" + dl.Email_DocGia + "','" + dl.NgayLapThe + "','" + dl.NgayHetHan + "','" + dl.TrangThai_TheDocGia + "')");
 }
 public DataTable NgayHetHan_Select(DTO_TheDocGia dl)
 {
     //return xl.table_Select("set dateformat dmy  SELECT CONVERT(varchar(20),DATEADD(month,6,'02/07/2019'),103) as NgayHetHan");
     return(xl.table_Select("set dateformat dmy  SELECT CONVERT(varchar(20),DATEADD(month," + dl.LayThoiHanThe + ",'" + dl.NgayLapThe + "'),103) as NgayHetHan"));
 }
 public DataTable ChonLoaiDocGia_Select(DTO_TheDocGia dl)
 {
     return(xl.table_Select("select ID_LoaiDocGia,Ten_LoaiDocGia from LoaiDocGia where  TrangThai_LoaiDocGia=N''"));
 }