public static bool addnewHoaDon(QuanLyHomestayEntities db, HOADON hd)
{
if (hd.NgayDen == null)
{
return(false);
}
else if (hd.NgayDen < DateTime.Today)
{
return(false);
}
else if (hd.NgayDen > hd.NgayDi)
{
return(false);
}
else if (hd.NgayDi == null)
{
return(false);
}
else if (hd.MaLoaiPhong == null)
{
return(false);
}
else if (hd.MaHoaDon == null)
{
return(false);
}
else
{
db.HOADONs.Add(hd);
db.SaveChanges();
return(true);
}
}
public static bool deletePhong(QuanLyHomestayEntities db, HOADON hd)
{
db = new QuanLyHomestayEntities();
db.HOADONs.Attach(hd);
db.HOADONs.Remove(hd);
db.SaveChanges();
return(true);
}
public static bool checkTK(string a)
{
QuanLyHomestayEntities db = new QuanLyHomestayEntities();
TAIKHOAN s = (from i in db.TAIKHOANs where i.TaiKhoan1.Equals(a) select i).FirstOrDefault();
if (s != null)
{
return(true);
}
return(false);
}
public static bool testLogin(string tk, string mk)
{
db = new QuanLyHomestayEntities();
try
{
TAIKHOAN s = (from i in db.TAIKHOANs where i.TaiKhoan1 == tk && i.Matkhau == mk select i).FirstOrDefault();
if (s != null)
{
return(true);
}
}
catch
{
}
return(false);
}
public Confirm(HOADON obj, string status)
{
InitializeComponent();
db = new QuanLyHomestayEntities();
lOAIPHONGBindingSource.DataSource = db.LOAIPHONGs.ToList();
if (status.Equals("add"))
{
bindingSource1.DataSource = obj;
hd = obj;
LOAIPHONG p = (from i in db.LOAIPHONGs where i.MaLoaiPhong == obj.MaLoaiPhong select i).FirstOrDefault();
textBox1.Text = p.TenLoaiPhong;
this.status = status;
}
else if (status.Equals("edit"))
{
bindingSource1.DataSource = obj;
hd = obj;
db.HOADONs.Attach(hd);
unlock();
this.status = status;
}
}
public static bool addNew(QuanLyHomestayEntities db, TAIKHOAN a)
{
if (checkTK(a.TaiKhoan1))
{
return(false);
}
else if (a.Matkhau == null || a.Matkhau == "")
{
return(false);
}
else if (a.Matkhau.Length < 8 || a.Matkhau.Length > 16)
{
return(false);
}
else if (a.HoTen == null || a.HoTen == "")
{
return(false);
}
else if (a.Phone == null || a.Phone == "")
{
return(false);
}
else if (a.TaiKhoan1 == null || a.TaiKhoan1 == "")
{
return(false);
}
else if (a != null)
{
db.TAIKHOANs.Add(a);
db.SaveChanges();
return(true);
}
else
{
return(false);
}
}
public static List <TAIKHOAN> LayDuLieu()
{
QuanLyHomestayEntities db = new QuanLyHomestayEntities();
return((from i in db.TAIKHOANs select i).ToList());
}
public fmDangKi()
{
InitializeComponent();
db = new QuanLyHomestayEntities();
}
