Basic Candle Sticks

View Model

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using CommunityToolkit.Mvvm.ComponentModel;
using LiveChartsCore;
using LiveChartsCore.Defaults;
using LiveChartsCore.SkiaSharpView;

namespace ViewModelsSamples.Financial.BasicCandlesticks;

public partial class ViewModel : ObservableObject
{
    // we have to let the chart know that the X axis in days.
    public Axis[] XAxes { get; set; } =
    {
        new Axis
        {
            LabelsRotation = 15,
            Labeler = value => new DateTime((long)value).ToString("yyyy MMM dd"),
            // set the unit width of the axis to "days"
            // since our X axis is of type date time and 
            // the interval between our points is in days
            UnitWidth = TimeSpan.FromDays(1).Ticks
        }
    };

    public ISeries[] Series { get; set; } =
    {
        new CandlesticksSeries<FinancialPoint>
        {
            Values = new ObservableCollection<FinancialPoint>
            {
                //                      date, high, open, close, low
                new(new DateTime(2021, 1, 1), 523, 500, 450, 400),
                new(new DateTime(2021, 1, 2), 500, 450, 425, 400),
                new(new DateTime(2021, 1, 3), 490, 425, 400, 380),
                new(new DateTime(2021, 1, 4), 420, 400, 420, 380),
                new(new DateTime(2021, 1, 5), 520, 420, 490, 400),
                new(new DateTime(2021, 1, 6), 580, 490, 560, 440),
                new(new DateTime(2021, 1, 7), 570, 560, 350, 340),
                new(new DateTime(2021, 1, 8), 380, 350, 380, 330),
                new(new DateTime(2021, 1, 9), 440, 380, 420, 350),
                new(new DateTime(2021, 1, 10), 490, 420, 460, 400),
                new(new DateTime(2021, 1, 11), 520, 460, 510, 460),
                new(new DateTime(2021, 1, 12), 580, 510, 560, 500),
                new(new DateTime(2021, 1, 13), 600, 560, 540, 510),
                new(new DateTime(2021, 1, 14), 580, 540, 520, 500),
                new(new DateTime(2021, 1, 15), 580, 520, 560, 520),
                new(new DateTime(2021, 1, 16), 590, 560, 580, 520),
                new(new DateTime(2021, 1, 17), 650, 580, 630, 550),
                new(new DateTime(2021, 1, 18), 680, 630, 650, 600),
                new(new DateTime(2021, 1, 19), 670, 650, 600, 570),
                new(new DateTime(2021, 1, 20), 640, 600, 610, 560),
                new(new DateTime(2021, 1, 21), 630, 610, 630, 590),
            }
        }
    };
}

using Eto.Forms;
using LiveChartsCore.SkiaSharpView.Eto;
using ViewModelsSamples.Financial.BasicCandlesticks;

namespace EtoFormsSample.Financial.BasicCandlesticks;

public class View : Panel
{
    private readonly CartesianChart cartesianChart;

    public View()
    {
        var viewModel = new ViewModel();

        cartesianChart = new CartesianChart
        {
            Series = viewModel.Series,
            XAxes = viewModel.XAxes,
        };

        Content = cartesianChart;
    }
}

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