GeneratorLogin/ViewModels/MainWindowViewModel.cs

using Avalonia.Controls;
using Avalonia.Media;
using LoginGenerator.Models;
using ReactiveUI;
using System;
using System.IO;
using System.Linq;

namespace LoginGenerator.ViewModels
{

    public class MainWindowViewModel : ViewModelBase
    {

        UserControl us = new GeneratePage();

        public UserControl US
        {
            get => us;
            set => this.RaiseAndSetIfChanged(ref us, value);
        }

        DataOutputViewModel dataOutput = new DataOutputViewModel();
        public DataOutputViewModel DataOutputVM
        {
            get => dataOutput;
            set => dataOutput = value;
        }

        GeneratePageViewModel generatePage = new GeneratePageViewModel();
        public GeneratePageViewModel GeneratePageVM
        {
            get => generatePage;
            set => generatePage = value;
        }

        public void ViewUsersData()
        {
            US = new DataOutput();
            DataOutputVM.FillingUsersList();
            DataOutputVM.Userss = DataOutputVM.Userss.OrderByDescending(x=>x.DateReg).ToList();
            if(GeneratePageVM.Theme == true)
            {
                DataOutputVM.Background = new SolidColorBrush(Color.FromRgb(80, 80, 80));
                DataOutputVM.Background2 = new SolidColorBrush(Color.FromRgb(128, 128, 128));
            }
            else
            {
                DataOutputVM.Background = new SolidColorBrush(Color.FromRgb(248, 244, 255));
                DataOutputVM.Background2 = new SolidColorBrush(Color.FromRgb(236, 233, 255));
            }
        }

        public void ViewGeneratePage()
        {
            US = new GeneratePage();
        }

        
    }
}