public bool deleteBaoHanh(EC_BaoHanh bh)
 {
     return(DA_BaoHanh.deleteBaoHanh(bh));
 }
 public DataTable GetMaBH(string mabh)
 {
     return(DA_BaoHanh.GetMaBH(mabh));
 }
 public bool insertBaoHanh(EC_BaoHanh bh)
 {
     return(DA_BaoHanh.insertBaoHanh(bh));
 }
 public bool updateBaoHanh(EC_BaoHanh bh)
 {
     return(DA_BaoHanh.updateBaoHanh(bh));
 }
 public DataTable searchMaKH(string key)
 {
     return(DA_BaoHanh.searchMaKH(key));
 }
 public DataTable getSanPham()
 {
     return(DA_BaoHanh.getSanPham());
 }
 public DataTable getAllKhachHang()
 {
     return(DA_BaoHanh.getKhachHang());
 }
 public DataTable searchIMEI(string key)
 {
     return(DA_BaoHanh.searchIMEI(key));
 }
 public DataTable getAll()
 {
     return(DA_BaoHanh.getAll());
 }