Forex_Strategy_Builder.Aroon_Histogram.Aroon_Histogram C# (CSharp) Метод

        public Aroon_Histogram(SlotTypes slotType)
        {
            // General properties
            IndicatorName  = "Aroon Histogram";
            PossibleSlots  = SlotTypes.OpenFilter | SlotTypes.CloseFilter;
            SeparatedChart = true;
            SeparatedChartMinValue = -100;
            SeparatedChartMaxValue = 100;
            IsDescreteValues = true; // <------------

            // Setting up the indicator parameters
            IndParam = new IndicatorParam();
            IndParam.IndicatorName = IndicatorName;
            IndParam.SlotType      = slotType;

            // The ComboBox parameters
            IndParam.ListParam[0].Caption  = "Logic";
            IndParam.ListParam[0].ItemList = new string[]
            {
                "The Aroon Histogram rises",
                "The Aroon Histogram falls",
                "The Aroon Histogram is higher than the Level line",
                "The Aroon Histogram is lower than the Level line",
                "The Aroon Histogram crosses the Level line upward",
                "The Aroon Histogram crosses the Level line downward",
                "The Aroon Histogram changes its direction upward",
                "The Aroon Histogram changes its direction downward"
            };
            IndParam.ListParam[0].Index    = 0;
            IndParam.ListParam[0].Text     = IndParam.ListParam[0].ItemList[IndParam.ListParam[0].Index];
            IndParam.ListParam[0].Enabled  = true;
            IndParam.ListParam[0].ToolTip  = "Logic of application of the indicator.";

            IndParam.ListParam[1].Caption  = "Base price";
            IndParam.ListParam[1].ItemList = Enum.GetNames(typeof(BasePrice));
            IndParam.ListParam[1].Index    = (int)BasePrice.Close;
            IndParam.ListParam[1].Text     = IndParam.ListParam[1].ItemList[IndParam.ListParam[1].Index];
            IndParam.ListParam[1].Enabled  = true;
            IndParam.ListParam[1].ToolTip  = "The price the Aroon is based on.";

            // The NumericUpDown parameters
            IndParam.NumParam[0].Caption   = "Period";
            IndParam.NumParam[0].Value     = 9;
            IndParam.NumParam[0].Min       = 1;
            IndParam.NumParam[0].Max       = 200;
            IndParam.NumParam[0].Enabled   = true;
            IndParam.NumParam[0].ToolTip   = "Period used to calculate the Aroon value.";

            IndParam.NumParam[1].Caption   = "Level";
            IndParam.NumParam[1].Value     = 0;
            IndParam.NumParam[1].Min       = -100;
            IndParam.NumParam[1].Max       = 100;
            IndParam.NumParam[1].Enabled   = true;
            IndParam.NumParam[1].ToolTip   = "A critical level (for the appropriate logic).";

            // The CheckBox parameters
            IndParam.CheckParam[0].Caption = "Use previous bar value";
            IndParam.CheckParam[0].Checked = PrepareUsePrevBarValueCheckBox(slotType);
            IndParam.CheckParam[0].Enabled = true;
            IndParam.CheckParam[0].ToolTip = "Use the indicator value from the previous bar.";

            return;
        }