Project41P2023/MyWpfApp/models/UserListModel.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ComponentModel;
using System.Windows.Controls;
using System.Windows;

namespace MyWpfApp.models
{
    internal class UserListModel:INotifyPropertyChanged
    {

        List<UserTable> users;

        List<Roles> roles;
        int idRole;
        string surname;

        public UserListModel()
        {
            users = Globals.MyGlobalConnection.UserTable.ToList();
            roles = Globals.MyGlobalConnection.Roles.ToList();
            roles.Add(new Roles() { ID = 0, Role = "Все роли" }); 
            idRole = 0;
        }

        public List<UserTable> Users { get=>users; set
                {
                    users = value;
                    PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Users"));                
                }
            }

        public List<Roles> Roles { get => roles; }
        public int IdRole { get => idRole; 
            set 
                {
                idRole = value;
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs("IdRole"));
                AllFilters();
                }
        }

        public string Surname { get => surname; set
            {
                surname = value;
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Surname"));
                AllFilters();                
            }
        }

        void AllFilters()
        {
            List<UserTable> userFiltered = Globals.MyGlobalConnection.UserTable.ToList();
            if (idRole !=0) userFiltered = userFiltered.Where(x => x.LoginedTable.IDRole == idRole).ToList();
            if (surname != null) userFiltered = userFiltered.Where(x => x.Surname.StartsWith(surname)).ToList();
            Users = userFiltered;
        }


        public event PropertyChangedEventHandler PropertyChanged;
    }
}