avalonia_pril/reactivepril/ViewModels/MainWindowViewModel.cs

using Avalonia.Controls;
using Microsoft.EntityFrameworkCore;
using reactivepril.Models;
using reactivepril.Views;
using ReactiveUI;
using System.Collections.Generic;
using System.Linq;
using Tmds.DBus.Protocol;

namespace reactivepril.ViewModels
{
    public class MainWindowViewModel : ViewModelBase
    {
#pragma warning disable CA1822 // Mark members as static
        Galochkin41pContext db = new Galochkin41pContext();
        string login;
        string password;
        List<Gender> gendersList;
        UserControl page = new Page1();
        PersonsViewModel personsVM;
        User user;
        string name;
        string surname;
        public Gender idgender;
        List<Gender> genderList;
        User registruser;
        Page2ViewModel page2VM = new Page2ViewModel();
        User currentUser;
        public int id;



        public List<Gender> GenderList { get => genderList; set => this.RaiseAndSetIfChanged(ref genderList, value); }
        public string Login { get => login; set => this.RaiseAndSetIfChanged(ref login, value); }
        public string Password { get => password; set => this.RaiseAndSetIfChanged(ref password, value); }
        public UserControl Page { get => page; set => this.RaiseAndSetIfChanged(ref page, value); }
        public string Name { get => name; set => this.RaiseAndSetIfChanged(ref name, value); }
        public string Surname { get => surname; set => this.RaiseAndSetIfChanged(ref surname, value); }
        public Gender? Idgender { get => idgender; set => this.RaiseAndSetIfChanged(ref idgender, value); }
        public User User { get => user; set => this.RaiseAndSetIfChanged(ref user, value); }
        public Page2ViewModel Page2VM { get => page2VM; set => page2VM = value; }
        public User CurrentUser { get => currentUser; set => this.RaiseAndSetIfChanged(ref currentUser, value); }

        public static MainWindowViewModel Self;

        public MainWindowViewModel()
        {
            Self = this;
            
        }

        public void  AddToTable()
        {
            registruser = new User { Name = Name, Surname = Surname, Genders =  idgender.IdGender, Login = Login, Password = Password, Roles = 2};

            db.Users.Add(registruser);
            db.SaveChanges();
            registruser = db.Users.FirstOrDefault(x=>x.Login == Login);
            
            Page = new Page2Next(User.UserId);
        }

        public void Enter()
        {
            registruser = db.Users.FirstOrDefault(x => x.Login == Login && x.Password == Password);
            if (registruser == null)
            {

                Password = "";
            }
            else
            {
                switch (registruser.Roles)
                {
                    case 2:
                        Page = new Page2Next(registruser.UserId); break;
                    case 1:
                        Page = new Page2(registruser.UserId); break;
                }
            }
        }

        public void Registr()
        {
            Page = new RegistrPage();
        }

    }
#pragma warning restore CA1822 // Mark members as static
}