Bollinger Bands %B for cTrader

using cAlgo.API;
using System.Windows.Forms;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.FullAccess)]
    public class ClickAlgoIndicator : Indicator
    {
        [Parameter(DefaultValue = 0.0)]
        public double Parameter { get; set; }

        [Output("Main")]
        public IndicatorDataSeries Result { get; set; }


        protected override void Initialize()
        {
            var Result = MessageBox.Show("To download the indicator, you need to visit our website.\nDo you wish to continue?", "Download Indicator", MessageBoxButtons.YesNo);

            if (Result == DialogResult.Yes)
                System.Diagnostics.Process.Start("https://clickalgo.com/bollinger-percent-b");
        }

        public override void Calculate(int index)
        {
            // Calculate value at specified index
            // Result[index] = ...
        }

    }
}