using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        List<Tuple<DateTime, String>> allLOINCDatesForPatient = new List<Tuple<DateTime, string>>();

        allLOINCDatesForPatient.Add(Tuple.Create<DateTime, String>(new DateTime(2018, 7, 8), "4548-4A"));

        allLOINCDatesForPatient.Add(Tuple.Create<DateTime, String>(new DateTime(2018, 7, 8), "4548-4B"));

        allLOINCDatesForPatient.Add(Tuple.Create<DateTime, String>(new DateTime(2018, 7, 1), "4548-4G"));

        allLOINCDatesForPatient.Add(Tuple.Create<DateTime, String>(new DateTime(2018, 7, 1), "4548-4H"));

        AnalyteDTO analyteDTO = new AnalyteDTO();

        analyteDTO.loinc = "4548-4A";

        List<AnalyteDTO> analyteDTOList = new List<AnalyteDTO>();

        analyteDTOList.Add(analyteDTO);

        DateTime observationDate = new DateTime(2018, 7, 8);

        OneDayAnalytes oneDayAnalytes = new OneDayAnalytes();

        oneDayAnalytes.Analytes = analyteDTOList;

        oneDayAnalytes.ObservationDate = observationDate;

        List<OneDayAnalytes> observationsList = new List<OneDayAnalytes>();

        observationsList.Add(oneDayAnalytes);

        foreach (OneDayAnalytes o in observationsList)

        {

            bool isNew = true;

            foreach (AnalyteDTO a in o.Analytes)

            {

                string databaseLOINC = a.loinc;

                DateTime databaseDate = o.ObservationDate.Date;

                foreach (Tuple<DateTime, String> lst in allLOINCDatesForPatient)

                {

                    if (lst.Item1.Date == databaseDate && lst.Item2.Equals(databaseLOINC))

                    {

                        isNew = false;

                        break;

                    }

                }

            }

​

            Console.WriteLine("Is New?  -->> " + isNew.ToString());

        }

​

        Console.ReadLine();

    }

}

​

public class AnalyteDTO

{

    public string analytename

    {

        get;

        set;

    }

​

    public string loinc

    {

        get;

        set;

    }

​

    public string units

    {

        get;

        set;

    }

​

    public float value

    {

        get;

        set;

    }

}

​

public class OneDayAnalytes

{

    public List<AnalyteDTO> Analytes

    {

        get;

        set;

    }

​

    public DateTime ObservationDate

    {

        get;

        set;

    }

}