public enum DataType
{
    Unspecified,
    Ai0
}

public class DataPoint
{
    public int ID { get; set; }

    public DateTime Date { get; set; }

    public DataType DataType { get; set; }

    public float Value { get; set; }

    [Obsolete("do not use this for initialisation. It's for searalization only")]
    public DataPoint(){}

    public DataPoint(DataType DataType, float Value)
    {
        ID = Program.GetNewID();
        Date = DateTime.UtcNow;
        this.DataType = DataType;
        this.Value = Value;
    }

    public override string ToString()
    {
        return ID.ToString();
    }

    public override bool Equals(object obj)
    {
        if (obj is DataPoint)
            return ID == ((DataPoint)obj).ID;
        return false;
    }

    public override int GetHashCode()
    {
        return ID;
    }
}