Ugh! V3.7 changes! Now string parameters are checked and a new copy of the indicator made with every keystroke?!

Team Spotware / @Panagiotis:

In addition to this issue:
https://ctrader.com/forum/indicator-support/22812?page=1#1

Now there's this issue: string parameters cause a new copy of the indicator on every keystroke? It used to be they didn't do anything until someone clicked outside of the input field.

Take this example:

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

/// <summary>
/// Add this indicator to the US30 M1 chart.
/// Change the Symbol in the text area. Notice it throws an exception on every keystroke!
/// Prior to V3.7, this used to work where it wouldn't check or do anything until the 
/// user clicked outside the input area.
/// Expected behavior: wait until the input area loses focus before doing a check as it 
/// was in v3.6! Otherwise this is ridiculous that cTrader is going to make a new copy
/// of the indicator for every keystroke with textual string input fields!
/// </summary>
namespace cAlgo
{
    [Levels(0)]
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class Test : Indicator
    {
        [Parameter("Symbols.Enter Whatever", DefaultValue = "US30")]
        public string TheSymbols { get; set; }

        [Output("Main", LineColor = "Green", LineStyle = LineStyle.Solid, PlotType = PlotType.Line, Thickness = 3)]
        public IndicatorDataSeries Result { get; set; }

        private Bars[] _marketSeries;
        private int z = 0;
        private int _lastIndex = 0;

        protected override void Initialize()
        {
            _marketSeries = new Bars[1];
            int x = 0;
            try
            {
                _marketSeries[x] = MarketData.GetBars(Bars.TimeFrame, TheSymbols);
                z = _marketSeries[x].OpenTimes.Count - (_marketSeries[x].OpenTimes.GetIndexByExactTime(_marketSeries[x].OpenTimes.Last(_marketSeries[x].ClosePrices.Count - 1)));
                for (int y = 0; y < z; y++)
                {
                    Result[y] = 0;
                    IndicatorArea.DrawStaticText("Result", "y:" + y + ",   z:" + z + ",", VerticalAlignment.Top, HorizontalAlignment.Left, Color.Goldenrod);
                }
            }
            catch (Exception e)
            {
                IndicatorArea.DrawStaticText("Exception", "Exception! " + e.Message, VerticalAlignment.Top, HorizontalAlignment.Left, Color.Red);
            }
        }

        public override void Calculate(int index)
        {
        }
    }
}