base/Connect_with_base/ViewModels/MainWindowViewModel.cs

using Avalonia.Controls;
//using AvaloniaApplication12.Models;
//using ReactiveUI;
namespace Connect_with_base.ViewModels
{
    public partial class MainWindowViewModel : ViewModelBase
    {
        public static MainWindowViewModel Instance;

        //public static TestBaseContext myConnection = new TestBaseContext();

        //public MainWindowViewModel()
        //{
        //    Instance = this;
        //}

        //UserControl _pageContent = new PageShowCats();

        //public UserControl PageContent
        //{
        //    get => _pageContent;
        //    set => this.RaiseAndSetIfChanged(ref _pageContent, value);
        //}
    }
}