public ExamSuiteGroup AddExamSuiteGruop(string SubjectId, [FromBody] ExamSuiteGroup examsuitegroup) { if (examsuitegroup != null) { //getsubject var _subject = repoForApprove.GetSubject(examsuitegroup.SubjectId); //addnew group var _examSuitIdInSubject = _subject.ExamSuites.Select(x => new Activated.ExamSuiteGroupMap { _id = Guid.NewGuid().ToString(), ExamSuiteId = x._id, RandomCount = 0, }).ToList(); var newExamsuitegroup = new Activated.ExamSuiteGroup { _id = examsuitegroup.ExamSuiteGroupName, ExamDuration = examsuitegroup.ExamDuration, IsUsed = examsuitegroup.IsUsed, PassScore = examsuitegroup.PassScore, ExamSuiteGroupName = examsuitegroup.ExamSuiteGroupName, ExamSuiteGroupMaps = _examSuitIdInSubject }; _subject.ExamSuiteGroups.Add(newExamsuitegroup); //upsertsubject repoForApprove.UpsertSubject(_subject); examsuitegroup.id = newExamsuitegroup._id; examsuitegroup.ExamSuiteGroupMaps = _examSuitIdInSubject.Select(x => new ExamSuiteGroupMap() { id = x._id, ExamSuiteId = x.ExamSuiteId, RandomCount = x.RandomCount, ExamSuiteGroupId = newExamsuitegroup._id, SubjectId = SubjectId, }); return(examsuitegroup); } return(null); }