MyAvaloniaDemo/AuroraDesk.Presentation/Views/Pages/ScottPlotPageView.axaml.cs

using ReactiveUI.Avalonia;
using Avalonia.Markup.Xaml;
using AuroraDesk.Presentation.ViewModels.Pages;
using ReactiveUI;
using System;
using System.Reactive.Disposables;
using ScottPlot.Avalonia;
using Avalonia.Controls;

namespace AuroraDesk.Presentation.Views.Pages;

public partial class ScottPlotPageView : ReactiveUserControl<ScottPlotPageViewModel>
{
    private AvaPlot? _plotControl1;
    private AvaPlot? _plotControl2;
    private AvaPlot? _plotControl3;
    private AvaPlot? _plotControl4;

    public ScottPlotPageView()
    {
        InitializeComponent();
        
        this.WhenActivated(disposables =>
        {
            // 查找所有图表控件
            _plotControl1 ??= this.FindControl<AvaPlot>("PlotControl1");
            _plotControl2 ??= this.FindControl<AvaPlot>("PlotControl2");
            _plotControl3 ??= this.FindControl<AvaPlot>("PlotControl3");
            _plotControl4 ??= this.FindControl<AvaPlot>("PlotControl4");
            
            // 当 ViewModel 加载时，设置所有 PlotControl 引用
            if (ViewModel != null)
            {
                if (_plotControl1 != null)
                {
                    ViewModel.PlotControl1 = _plotControl1;
                }
                if (_plotControl2 != null)
                {
                    ViewModel.PlotControl2 = _plotControl2;
                }
                if (_plotControl3 != null)
                {
                    ViewModel.PlotControl3 = _plotControl3;
                }
                if (_plotControl4 != null)
                {
                    ViewModel.PlotControl4 = _plotControl4;
                }
            }
            
            // 清理
            disposables.Add(Disposable.Create(() =>
            {
                if (ViewModel != null)
                {
                    ViewModel.PlotControl1 = null;
                    ViewModel.PlotControl2 = null;
                    ViewModel.PlotControl3 = null;
                    ViewModel.PlotControl4 = null;
                }
            }));
        });
    }

    private void InitializeComponent()
    {
        AvaloniaXamlLoader.Load(this);
    }
}