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92
XLIMS.SP/ViewModels/BooksViewModel.cs
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92
XLIMS.SP/ViewModels/BooksViewModel.cs
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Text;
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using System.Windows.Input;
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using XLIMS.CONTRACT;
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using XLIMS.DATA.Models;
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using XLIMS.MVVM.Base;
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namespace XLIMS.SP.ViewModels
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{
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public class BooksViewModel:ViewModelBase
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{
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#region Constructor
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public BooksViewModel(ILimsService limsService,IDialogService dialogService)
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{
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_limsService = limsService;
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_dialogService = dialogService;
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_limsService.Books.SetChanged += OnBooksChanged;
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LoadDataAsync();
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}
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#endregion //Constructor
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#region Events
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private async void OnBooksChanged()
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{
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await LoadDataAsync();
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}
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#endregion //Events
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#region Fields
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private readonly ILimsService _limsService;
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private readonly IDialogService _dialogService;
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private bool _isLoading;
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private BookViewModel _currentBook;
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#endregion //Fields
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#region Properties
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public ObservableCollection<BookViewModel> AllBooks { get; set; } = new();
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public BookViewModel CurrentBook
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{
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get=>_currentBook;
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set { _currentBook = value; OnPropertyChanged(); }
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}
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public bool IsLoading
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{
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get => _isLoading;
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set { _isLoading = value; OnPropertyChanged(); }
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}
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#endregion //Properties
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#region Methods
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public async Task LoadDataAsync()
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{
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IsLoading = true;
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try
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{
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// Параллельная загрузка данных из разных доменов через подсервисы
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var booksTask = await _limsService.Books.GetAllAsync();
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AllBooks = new ObservableCollection<BookViewModel>(booksTask.Select(s => new BookViewModel(_limsService, s)));
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OnPropertyChanged(nameof(AllBooks));
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}
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finally
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{
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IsLoading = false;
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}
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}
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private void Add()
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{
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_dialogService.ShowDialog(new BookViewModel(_limsService));
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}
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private void Edit()
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{
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_dialogService.ShowDialog(CurrentBook);
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}
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private async Task DelAsync()
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{
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await CurrentBook.Remove();
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AllBooks.Remove(CurrentBook);
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OnPropertyChanged(nameof(AllBooks));
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}
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#endregion //Methods
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#region Commands
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public ICommand AddCommand =>new RelayCommand(p=> Add());
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public ICommand EditCommand => new RelayCommand(p => Edit(),p=>CurrentBook!=null);
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public ICommand DelCommand => new AsyncRelayCommand(DelAsync, ()=>CurrentBook != null);
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#endregion //Commands
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}
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}
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