Dynamic Visibility

sample image

View model

using System.Collections.ObjectModel;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using LiveChartsCore;
using LiveChartsCore.SkiaSharpView;

namespace ViewModelsSamples.General.Visibility;

[ObservableObject]
public partial class ViewModel
{
    public ISeries[] Series { get; set; } =
    {
        new ColumnSeries<double>
        {
            Values = new ObservableCollection<double> { 2, 5, 4, 3 },
            IsVisible = true
        },
        new ColumnSeries<double>
        {
            Values = new ObservableCollection<double> { 6, 3, 2, 8 },
            IsVisible = true
        },
        new ColumnSeries<double>
        {
            Values = new ObservableCollection<double> { 4, 2, 8, 7 },
            IsVisible = true
        }
    };

    [ICommand]
    public void ToggleSeries0()
    {
        Series[0].IsVisible = !Series[0].IsVisible;
    }

    [ICommand]
    public void ToggleSeries1()
    {
        Series[1].IsVisible = !Series[1].IsVisible;
    }

    [ICommand]
    public void ToggleSeries2()
    {
        Series[2].IsVisible = !Series[2].IsVisible;
    }
}

using Eto.Forms;
using LiveChartsCore.SkiaSharpView.Eto;
using ViewModelsSamples.General.Visibility;

namespace EtoFormsSample.General.Visibility;

public class View : Panel
{
    private readonly CartesianChart cartesianChart;

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

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

        var b1 = new Button { Text = "toggle 1" };
        b1.Click += (object sender, System.EventArgs e) => viewModel.ToggleSeries0();

        var b2 = new Button { Text = "toggle 2" };
        b2.Click += (object sender, System.EventArgs e) => viewModel.ToggleSeries1();

        var b3 = new Button { Text = "toggle 3" };
        b3.Click += (object sender, System.EventArgs e) => viewModel.ToggleSeries2();

        var buttons = new StackLayout(b1, b2, b3) { Orientation = Orientation.Horizontal, Padding = 2, Spacing = 4 };

        Content = new DynamicLayout(buttons, cartesianChart);
    }
}

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