public List <Models.BU.Module> GetModuleListOfTeacher(int userId) { Models.Database db = new Models.Database(); string query = "SELECT DISTINCT m.* FROM Module m, ModuleUser mu, UserAccount ua WHERE ua.UserId = mu.UserId AND mu.ModuleId = m.ModuleId AND ua.UserId = '" + userId + "'"; return(db.GetModuleListOfTeacher(query)); }