public void Delete(int id)
        {
            tbluser newUserMaster = contextu.tblusers.Where(obj => obj.ID == id).FirstOrDefault();

            contextu.tblusers.Remove(newUserMaster);
            contextu.SaveChanges();
        }
        public void Update(tbluser obj)
        {
            tbluser newUserMaster = contextu.tblusers.Where(obj1 => obj1.ID == obj.ID).FirstOrDefault();

            newUserMaster.firstname    = obj.firstname;
            newUserMaster.lastname     = obj.lastname;
            newUserMaster.passwordHash = obj.passwordHash;
            newUserMaster.username     = obj.username;
            newUserMaster.role_id      = obj.role_id;
            newUserMaster.phone        = obj.phone;
            newUserMaster.isActive     = obj.isActive;

            contextu.SaveChanges();
        }
        public int Insert(tbluser obj)
        {
            tbluser newUserMaster = new tbluser();

            newUserMaster.firstname    = obj.firstname;
            newUserMaster.lastname     = obj.lastname;
            newUserMaster.passwordHash = obj.passwordHash;
            newUserMaster.username     = obj.username;
            newUserMaster.role_id      = obj.role_id;
            newUserMaster.phone        = obj.phone;
            newUserMaster.isActive     = obj.isActive;

            contextu.tblusers.Add(newUserMaster);
            contextu.SaveChanges();
            return(newUserMaster.ID);
        }