bo/Workbench/QMonitor/qmonlib.ui/ResourceLocator.cs

using System;
using Avalonia.Controls;

namespace qmonlib.ui
{
    public static class ResourceLocator
    {
        public static IServiceProvider? GetServiceProvider()
        {
            if (Avalonia.Application.Current != null)
                return (IServiceProvider?)Avalonia.Application.Current.FindResource(typeof(IServiceProvider));
            throw new InvalidOperationException("Avalonia.Application.Current is null");
        }
        public static void SetServiceProvider(IServiceProvider? provider)
        {
            if (Avalonia.Application.Current != null)
                Avalonia.Application.Current.Resources[typeof(IServiceProvider)] = provider;
            else
                throw new InvalidOperationException("Avalonia.Application.Current is null");
        }

    }
}