cTrader Desktop 5.0.21: Panel does not resize if inner elements get hidden

PanagiotisCharalampous
22 May 2024, 05:21

Hi there,

Can you share the indicator code so that we can reproduce this behavior?

Best regards,

Panagiotis

wolters
22 May 2024, 08:54

RE: cTrader Desktop 5.0.21: Panel does not resize if inner elements get hidden

PanagiotisCharalampous said: 

Hi there,

Can you share the indicator code so that we can reproduce this behavior?

Best regards,

Panagiotis

Good morning Panagiotis,

here is an example code:

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

namespace cAlgo
{
    [Indicator(AccessRights = AccessRights.None, IsOverlay = true)]
    public class Test : Indicator
    {
        protected override void Initialize()
        {
            Panel innerPanel1 = new StackPanel();            
            var innerGrid = new Grid(3, 2);

            TextBlock textBlock1 = new();
            textBlock1.Text = "Cell 1";
            textBlock1.BackgroundColor = Color.Gold;

            TextBlock textBlock1b = new();
            textBlock1b.Text = "Cell 2";
            textBlock1b.BackgroundColor = Color.Aqua;

            Button button1 = new();
            button1.Text = "Click me - it shoud collapse the invisible row but it does not anymore with 5.0.21.";
            button1.Click += args =>
            {
                textBlock1.IsVisible = !textBlock1.IsVisible;
                textBlock1b.IsVisible = textBlock1.IsVisible;
            };

            innerGrid.AddChild(button1, 0, 0, 1, 2);
            innerGrid.AddChild(textBlock1, 1, 0);
            innerGrid.AddChild(textBlock1b, 1, 1);
            innerPanel1.AddChild(innerGrid);


            var innerGrid2 = new Grid(2, 1);
            Panel innerPanel2 = new StackPanel();            
            TextBlock textBlock2 = new();
            textBlock2.Text = "Col-Span-Cell";

            Button button2 = new();
            button2.Text = "Click me - it shoud collapse the invisible row but it does not anymore with 5.0.21.";
            button2.Click += args =>
            {
                textBlock2.IsVisible = !textBlock2.IsVisible;
            };

            innerGrid2.AddChild(button2, 0, 0, 1, 2);
            innerGrid2.AddChild(textBlock2, 1, 0, 1, 2);
            innerPanel2.AddChild(innerGrid2);


            Panel innerPanel3 = new StackPanel();            
            TextBlock textBlock3 = new();
            textBlock3.Text = "No grid";

            Button button3 = new();
            button3.Text = "Click me - even without a grid, it will not collapse the invisible textblock anymore.";
            button3.Click += args =>
            {
                textBlock3.IsVisible = !textBlock3.IsVisible;
            };

            innerPanel3.AddChild(button3);
            innerPanel3.AddChild(textBlock3);


            Panel mainPanel = new StackPanel();
            mainPanel.AddChild(innerPanel1);    // with grid selecting only one cell
            mainPanel.AddChild(innerPanel2);    // with grid selecting only one cell
            mainPanel.AddChild(innerPanel3);
            
            mainPanel.AddChild(new TextBlock
                 {
                     Text = "Does not move even if elements are completely hidden.",
                     TextAlignment = TextAlignment.Center,
                     Margin = 5,
                     ForegroundColor = Color.Black,
                     FontWeight = FontWeight.ExtraBold
                 });
            
            mainPanel.IsVisible = true;

            StackPanel tradePanelFrame = new StackPanel
            {
                HorizontalAlignment = HorizontalAlignment.Left,
                VerticalAlignment = VerticalAlignment.Top,
                BackgroundColor = Color.LightBlue,
                Margin = 50,                
            };
            tradePanelFrame.AddChild(mainPanel);
            Chart.AddControl(tradePanelFrame);
        }

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

PanagiotisCharalampous
22 May 2024, 10:47

Hi wolters,

Thank you. We will check and resolve in an upcoming update.

Best regards,

Panagiotis