public bool xoauser(String tentk)
{
tlb_user msd = timtheotentk(tentk);
db.tlb_users.DeleteOnSubmit(msd);
try
{
db.SubmitChanges();
}
catch
{
return(false);
}
return(true);
}
public bool suamk(String tentk, String mk)
{
tlb_user msd = timtheotentk(tentk);
//tlb_user user = new tlb_user();
msd.mk = mk;
try
{
db.SubmitChanges();
}
catch
{
return(false);
}
return(true);
}
public bool themuser(String msv, String mk, int quyen)
{
tlb_user user = new tlb_user();
user.tentk = msv;
user.mk = mk;
user.quyen = quyen;
db.tlb_users.InsertOnSubmit(user);
try
{
db.SubmitChanges();
}
catch
{
return(false);
}
return(true);
}
public tlb_user Login(String tentk, String mk)
{
tlb_user login = db.tlb_users.Where(s => s.tentk == tentk && s.mk == mk).SingleOrDefault();
return(login);
}
