Exemple #1
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 public PhieuThueDAO()
 {
     db = new QuanLyKhachSanDBContext();
 }
Exemple #2
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 public ChiTietPhieuDAO()
 {
     db = new QuanLyKhachSanDBContext();
 }
Exemple #3
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 public KhachHangDAO()
 {
     db = new QuanLyKhachSanDBContext();
 }