FastQuant.TimeSeries.GetValue C# (CSharp) Méthode

        public double GetValue(int index) => this[index];

 public Cross Crosses(TimeSeries series, DateTime dateTime)
 {
     var num = IndexOf(dateTime);
     var num2 = series.IndexOf(dateTime);
     if (num <= 0 || num >= this.series.Count)
     {
         return Cross.None;
     }
     if (num2 > 0 && num2 < series.Count)
     {
         DateTime dateTime2 = GetDateTime(num - 1);
         DateTime dateTime3 = series.GetDateTime(num2 - 1);
         if (dateTime2 == dateTime3)
         {
             if (this.GetValue(num - 1) <= series.GetValue(num2 - 1) && this.GetValue(num) > series.GetValue(num2))
             {
                 return Cross.Above;
             }
             if (this.GetValue(num - 1) >= series.GetValue(num2 - 1) && this.GetValue(num) < series.GetValue(num2))
             {
                 return Cross.Below;
             }
         }
         else
         {
             double value;
             double value2;
             if (dateTime2 < dateTime3)
             {
                 DateTime dateTime4 = this.GetDateTime(num - 1);
                 value = this.GetValue(num - 1);
                 if (series.IndexOf(dateTime4, SearchOption.Next) != num2)
                 {
                     value2 = series.GetValue(series.IndexOf(dateTime4, SearchOption.Next));
                 }
                 else
                 {
                     value2 = series.GetValue(series.IndexOf(dateTime4, SearchOption.Prev));
                 }
             }
             else
             {
                 DateTime dateTime5 = series.GetDateTime(num2 - 1);
                 value2 = series.GetValue(num2 - 1);
                 if (this.IndexOf(dateTime5, SearchOption.Prev) != num)
                 {
                     value = this.GetValue(this.IndexOf(dateTime5, SearchOption.Next));
                 }
                 else
                 {
                     value = this.GetValue(this.IndexOf(dateTime5, SearchOption.Prev));
                 }
             }
             if (value <= value2 && this.GetValue(num) > series.GetValue(num2))
             {
                 return Cross.Above;
             }
             if (value >= value2 && this.GetValue(num) < series.GetValue(num2))
             {
                 return Cross.Below;
             }
         }
         return Cross.None;
     }
     return Cross.None;
 }