ProductionPractice_replay/ViewModels/CategoryTableViewModel.cs

using Avalonia.Controls;
using ReactiveUI;
using FinancialManagement.Views;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using FinancialManagement.Models;

namespace FinancialManagement.ViewModels
{
    public class CategoryTableViewModel : ReactiveObject
    {
        ShmelevTeamContext ppContext;
        List<CategoryTableView> categores = new List<CategoryTableView>();
        private string categoryTitle;
        int indexCategory;

        public int IndexCategory { get => indexCategory; set => indexCategory = value; }
        public List<CategoryTableView> Categores { get => categores; set => this.RaiseAndSetIfChanged(ref categores, value); }
        public Category ItemCategory { get => ppContext.Categories.First(it => it.CategoryId == categores[IndexCategory].CategoryId); }
        public string CategoryTitle { get => categoryTitle; set => categoryTitle = value; }


        public CategoryTableViewModel(User currentUser, ShmelevTeamContext ppContext)
        {
            this.ppContext = ppContext;
            List<Category> categoriesList = ppContext.Categories
                .Where( c => c.IdUser == currentUser.UserId)
                .ToList();
            categoriesList.ForEach(it =>
            {
                CategoryTableView item = new CategoryTableView();
                item.CategoryId = it.CategoryId;
                item.CategoryTitle = it.Title;
                categores.Add(item);
            });
        }
    }
    public class CategoryTableView
    {
        public int CategoryId { get; set; }
        public string CategoryTitle { get; set; } = null!;
    }
}