private void AddGroupMeditationItem(DateTime dt, double startTime, double duration, int InitiateTypeID) { GroupMeditation gm = new GroupMeditation(); gm.InitiateTypeID = InitiateTypeID; gm.StartDateTime = dt.Date.AddHours(startTime); gm.EndDateTime = gm.StartDateTime.AddHours(duration); if (!_entities.GroupMeditations.Any(a => a.StartDateTime == gm.StartDateTime)) { _entities.AddToGroupMeditations(gm); _entities.SaveChanges(); } }