public int Login([System.Web.Http.FromBody] NhanVien nv) { int ret = 0; DBCNLTTH_BanSach db = new DBCNLTTH_BanSach(); var data = db.NhanViens.Where(x => x.TenTaiKhoan == nv.TenTaiKhoan.Trim() && x.MatKhau == nv.MatKhau).FirstOrDefault(); if (data == null) { ret = 0; } else { ret = 1; } return(ret); }