Auto Updates On Gauges

View model

using System;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.ComponentModel;

namespace ViewModelsSamples.Pies.Gauge5;

public partial class ViewModel : ObservableObject
{
    private readonly Random _random = new();

    [ObservableProperty]
    public partial double Value1 { get; set; } = 50;

    [ObservableProperty]
    public partial double Value2 { get; set; } = 80;

    [RelayCommand]
    public void DoRandomChange()
    {
        Value1 = _random.Next(0, 100);
        Value2 = _random.Next(0, 100);
    }
}

XAML

<UserControl
    x:Class="WPFSample.Pies.Gauge5.View"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:lvc="clr-namespace:LiveChartsCore.SkiaSharpView.WPF;assembly=LiveChartsCore.SkiaSharpView.WPF"
    xmlns:vms="clr-namespace:ViewModelsSamples.Pies.Gauge5;assembly=ViewModelsSamples"
    MaxHeight="400"
    MaxWidth="400">

    <UserControl.DataContext>
        <vms:ViewModel/>
    </UserControl.DataContext>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Button
            Grid.Row="0"
            Command="{Binding DoRandomChangeCommand}"
            Content="Change Value"/>
        <lvc:PieChart
            Grid.Row="1"
            InitialRotation="-90"
            MinValue="0"
            MaxValue="100"
            MaxAngle="270"
            LegendPosition="Bottom">
            <lvc:PieChart.Series>
                <lvc:SeriesCollection>

                    <lvc:XamlGaugeSeries
                        SeriesName="North"
                        GaugeValue="{Binding Value1}"
                        DataLabelsPosition="Start"/>

                    <lvc:XamlGaugeSeries
                        SeriesName="South"
                        GaugeValue="{Binding Value2}"
                        DataLabelsPosition="Start"/>

                </lvc:SeriesCollection>
            </lvc:PieChart.Series>
        </lvc:PieChart>
    </Grid>
</UserControl>

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