modifing the SAMPLE TRADING PANEL from cT 3.8 cBot examples

Dear Panagiotis,

I try to modify your sample code, so that the value for "DefaultTakeProfitPips" is altered and displayed with every tick (ontick)  (or, if not possible) with every bar (onbar).

Is this possible an how do I have to modify the code at which position?

the code below is an unaltered cut & paste from the actual cTrader Automate area.

Thank you very much for your support!

using System;
using System.Collections.Generic;
using cAlgo.API;
using cAlgo.API.Internals;

namespace cAlgo.Robots
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SampleTradingPanel : Robot
    {

        [Parameter("Vertical Position", Group = "Panel alignment", DefaultValue = VerticalAlignment.Top)]
        public VerticalAlignment PanelVerticalAlignment { get; set; }

        [Parameter("Horizontal Position", Group = "Panel alignment", DefaultValue = HorizontalAlignment.Left)]
        public HorizontalAlignment PanelHorizontalAlignment { get; set; }

        [Parameter("Default Lots", Group = "Default trade parameters", DefaultValue = 0.01)]
        public double DefaultLots { get; set; }

        [Parameter("Default Take Profit (pips)", Group = "Default trade parameters", DefaultValue = 20)]
        public double DefaultTakeProfitPips { get; set; }

        [Parameter("Default Stop Loss (pips)", Group = "Default trade parameters", DefaultValue = 20)]
        public double DefaultStopLossPips { get; set; }

        protected override void OnStart()
        {
            var tradingPanel = new TradingPanel(this, Symbol, DefaultLots, DefaultStopLossPips, DefaultTakeProfitPips);

            var border = new Border 
            {
                VerticalAlignment = PanelVerticalAlignment,
                HorizontalAlignment = PanelHorizontalAlignment,
                Style = Styles.CreatePanelBackgroundStyle(),
                Margin = "20 40 20 20",
                Width = 225,
                Child = tradingPanel
            };

            Chart.AddControl(border);
        }
    }

    public class TradingPanel : CustomControl
    {
        private const string LotsInputKey = "LotsKey";
        private const string TakeProfitInputKey = "TPKey";
        private const string StopLossInputKey = "SLKey";
        private readonly IDictionary<string, TextBox> _inputMap = new Dictionary<string, TextBox>();
        private readonly Robot _robot;
        private readonly Symbol _symbol;

        public TradingPanel(Robot robot, Symbol symbol, double defaultLots, double defaultStopLossPips, double defaultTakeProfitPips)
        {
            _robot = robot;
            _symbol = symbol;
            AddChild(CreateTradingPanel(defaultLots, defaultStopLossPips, defaultTakeProfitPips));
        }

        private ControlBase CreateTradingPanel(double defaultLots, double defaultStopLossPips, double defaultTakeProfitPips)
        {
            var mainPanel = new StackPanel();

            var header = CreateHeader();
            mainPanel.AddChild(header);

            var contentPanel = CreateContentPanel(defaultLots, defaultStopLossPips, defaultTakeProfitPips);
            mainPanel.AddChild(contentPanel);

            return mainPanel;
        }

        private ControlBase CreateHeader()
        {
            var headerBorder = new Border 
            {
                BorderThickness = "0 0 0 1",
                Style = Styles.CreateCommonBorderStyle()
            };

            var header = new TextBlock 
            {
                Text = "Quick Trading Panel",
                Margin = "10 7",
                Style = Styles.CreateHeaderStyle()
            };

            headerBorder.Child = header;
            return headerBorder;
        }

        private StackPanel CreateContentPanel(double defaultLots, double defaultStopLossPips, double defaultTakeProfitPips)
        {
            var contentPanel = new StackPanel 
            {
                Margin = 10
            };
            var grid = new Grid(4, 3);
            grid.Columns[1].SetWidthInPixels(5);

            var sellButton = CreateTradeButton("SELL", Styles.CreateSellButtonStyle(), TradeType.Sell);
            grid.AddChild(sellButton, 0, 0);

            var buyButton = CreateTradeButton("BUY", Styles.CreateBuyButtonStyle(), TradeType.Buy);
            grid.AddChild(buyButton, 0, 2);

            var lotsInput = CreateInputWithLabel("Quantity (Lots)", defaultLots.ToString("F2"), LotsInputKey);
            grid.AddChild(lotsInput, 1, 0, 1, 3);

            var stopLossInput = CreateInputWithLabel("Stop Loss (Pips)", defaultStopLossPips.ToString("F1"), StopLossInputKey);
            grid.AddChild(stopLossInput, 2, 0);

            var takeProfitInput = CreateInputWithLabel("Take Profit (Pips)", defaultTakeProfitPips.ToString("F1"), TakeProfitInputKey);
            grid.AddChild(takeProfitInput, 2, 2);

            var closeAllButton = CreateCloseAllButton();
            grid.AddChild(closeAllButton, 3, 0, 1, 3);

            contentPanel.AddChild(grid);

            return contentPanel;
        }

        private Button CreateTradeButton(string text, Style style, TradeType tradeType)
        {
            var tradeButton = new Button 
            {
                Text = text,
                Style = style,
                Height = 25
            };

            tradeButton.Click += args => ExecuteMarketOrderAsync(tradeType);

            return tradeButton;
        }

        private ControlBase CreateCloseAllButton()
        {
            var closeAllBorder = new Border 
            {
                Margin = "0 10 0 0",
                BorderThickness = "0 1 0 0",
                Style = Styles.CreateCommonBorderStyle()
            };

            var closeButton = new Button 
            {
                Style = Styles.CreateCloseButtonStyle(),
                Text = "Close All",
                Margin = "0 10 0 0"
            };

            closeButton.Click += args => CloseAll();
            closeAllBorder.Child = closeButton;

            return closeAllBorder;
        }

        private Panel CreateInputWithLabel(string label, string defaultValue, string inputKey)
        {
            var stackPanel = new StackPanel 
            {
                Orientation = Orientation.Vertical,
                Margin = "0 10 0 0"
            };

            var textBlock = new TextBlock 
            {
                Text = label
            };

            var input = new TextBox 
            {
                Margin = "0 5 0 0",
                Text = defaultValue,
                Style = Styles.CreateInputStyle()
            };

            _inputMap.Add(inputKey, input);

            stackPanel.AddChild(textBlock);
            stackPanel.AddChild(input);

            return stackPanel;
        }

        private void ExecuteMarketOrderAsync(TradeType tradeType)
        {
            var lots = GetValueFromInput(LotsInputKey, 0);
            if (lots <= 0)
            {
                _robot.Print(string.Format("{0} failed, invalid Lots", tradeType));
                return;
            }

            var stopLossPips = GetValueFromInput(StopLossInputKey, 0);
            var takeProfitPips = GetValueFromInput(TakeProfitInputKey, 0);

            _robot.Print(string.Format("Open position with: LotsParameter: {0}, StopLossPipsParameter: {1}, TakeProfitPipsParameter: {2}", lots, stopLossPips, takeProfitPips));

            var volume = _symbol.QuantityToVolumeInUnits(lots);
            _robot.ExecuteMarketOrderAsync(tradeType, _symbol.Name, volume, "Trade Panel Sample", stopLossPips, takeProfitPips);
        }

        private double GetValueFromInput(string inputKey, double defaultValue)
        {
            double value;

            return double.TryParse(_inputMap[inputKey].Text, out value) ? value : defaultValue;
        }

        private void CloseAll()
        {
            foreach (var position in _robot.Positions)
                _robot.ClosePositionAsync(position);
        }
    }

    public static class Styles
    {
        public static Style CreatePanelBackgroundStyle()
        {
            var style = new Style();
            style.Set(ControlProperty.CornerRadius, 3);
            style.Set(ControlProperty.BackgroundColor, GetColorWithOpacity(Color.FromHex("#292929"), 0.85m), ControlState.DarkTheme);
            style.Set(ControlProperty.BackgroundColor, GetColorWithOpacity(Color.FromHex("#FFFFFF"), 0.85m), ControlState.LightTheme);
            style.Set(ControlProperty.BorderColor, Color.FromHex("#3C3C3C"), ControlState.DarkTheme);
            style.Set(ControlProperty.BorderColor, Color.FromHex("#C3C3C3"), ControlState.LightTheme);
            style.Set(ControlProperty.BorderThickness, new Thickness(1));

            return style;
        }

        public static Style CreateCommonBorderStyle()
        {
            var style = new Style();
            style.Set(ControlProperty.BorderColor, GetColorWithOpacity(Color.FromHex("#FFFFFF"), 0.12m), ControlState.DarkTheme);
            style.Set(ControlProperty.BorderColor, GetColorWithOpacity(Color.FromHex("#000000"), 0.12m), ControlState.LightTheme);
            return style;
        }

        public static Style CreateHeaderStyle()
        {
            var style = new Style();
            style.Set(ControlProperty.ForegroundColor, GetColorWithOpacity("#FFFFFF", 0.70m), ControlState.DarkTheme);
            style.Set(ControlProperty.ForegroundColor, GetColorWithOpacity("#000000", 0.65m), ControlState.LightTheme);
            return style;
        }

        public static Style CreateInputStyle()
        {
            var style = new Style(DefaultStyles.TextBoxStyle);
            style.Set(ControlProperty.BackgroundColor, Color.FromHex("#1A1A1A"), ControlState.DarkTheme);
            style.Set(ControlProperty.BackgroundColor, Color.FromHex("#111111"), ControlState.DarkTheme | ControlState.Hover);
            style.Set(ControlProperty.BackgroundColor, Color.FromHex("#E7EBED"), ControlState.LightTheme);
            style.Set(ControlProperty.BackgroundColor, Color.FromHex("#D6DADC"), ControlState.LightTheme | ControlState.Hover);
            style.Set(ControlProperty.CornerRadius, 6);
            return style;
        }

        public static Style CreateBuyButtonStyle()
        {
            return CreateButtonStyle(Color.FromHex("#009345"), Color.FromHex("#10A651"));
        }

        public static Style CreateSellButtonStyle()
        {
            return CreateButtonStyle(Color.FromHex("#F05824"), Color.FromHex("#FF6C36"));
        }

        public static Style CreateCloseButtonStyle()
        {
            return CreateButtonStyle(Color.FromHex("#F05824"), Color.FromHex("#FF6C36"));
        }

        private static Style CreateButtonStyle(Color color, Color hoverColor)
        {
            var style = new Style(DefaultStyles.ButtonStyle);
            style.Set(ControlProperty.BackgroundColor, color, ControlState.DarkTheme);
            style.Set(ControlProperty.BackgroundColor, color, ControlState.LightTheme);
            style.Set(ControlProperty.BackgroundColor, hoverColor, ControlState.DarkTheme | ControlState.Hover);
            style.Set(ControlProperty.BackgroundColor, hoverColor, ControlState.LightTheme | ControlState.Hover);
            style.Set(ControlProperty.ForegroundColor, Color.FromHex("#FFFFFF"), ControlState.DarkTheme);
            style.Set(ControlProperty.ForegroundColor, Color.FromHex("#FFFFFF"), ControlState.LightTheme);
            return style;
        }

        private static Color GetColorWithOpacity(Color baseColor, decimal opacity)
        {
            var alpha = (int)Math.Round(byte.MaxValue * opacity, MidpointRounding.AwayFromZero);
            return Color.FromArgb(alpha, baseColor);
        }
    }
}