104 lines
3.3 KiB
C#
104 lines
3.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Windows.Input;
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namespace XLAB2
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{
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internal sealed class FrpdvdEditWindowViewModel : ObservableObject
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{
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private readonly IReadOnlyList<FrpdvdDirectoryItem> _existingItems;
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private int _activityId;
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private string _validationMessage;
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public FrpdvdEditWindowViewModel(FrpdvdDirectoryItem seed, bool isNew, IReadOnlyList<FrpdvdDirectoryItem> existingItems, FrpdDirectoryService service)
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{
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var source = seed ?? new FrpdvdDirectoryItem();
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_existingItems = existingItems ?? Array.Empty<FrpdvdDirectoryItem>();
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Id = source.Id;
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FrpdId = source.FrpdId;
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IsNew = isNew;
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ActivityItems = service.LoadSpvddoReferences();
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ActivityId = source.ActivityId;
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ConfirmCommand = new RelayCommand(Confirm);
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CancelCommand = new RelayCommand(Cancel);
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}
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public event EventHandler<bool?> CloseRequested;
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public int ActivityId
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{
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get { return _activityId; }
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set { SetProperty(ref _activityId, value); }
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}
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public IReadOnlyList<DirectoryLookupItem> ActivityItems { get; private set; }
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public ICommand CancelCommand { get; private set; }
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public ICommand ConfirmCommand { get; private set; }
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public int FrpdId { get; private set; }
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public int Id { get; private set; }
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public bool IsNew { get; private set; }
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public string Title
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{
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get { return IsNew ? "Новый вид деятельности организации" : "Редактирование вида деятельности организации"; }
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}
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public string ValidationMessage
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{
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get { return _validationMessage; }
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private set { SetProperty(ref _validationMessage, value); }
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}
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public FrpdvdDirectoryItem ToResult()
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{
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return new FrpdvdDirectoryItem
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{
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ActivityId = ActivityId,
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FrpdId = FrpdId,
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Id = Id
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};
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}
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private void Cancel(object parameter)
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{
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RaiseCloseRequested(false);
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}
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private void Confirm(object parameter)
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{
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if (ActivityId <= 0)
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{
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ValidationMessage = "Укажите вид деятельности организации.";
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return;
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}
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var duplicate = _existingItems.FirstOrDefault(delegate(FrpdvdDirectoryItem item)
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{
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return item != null
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&& item.Id != Id
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&& item.ActivityId == ActivityId;
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});
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if (duplicate != null)
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{
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ValidationMessage = "Выбранный вид деятельности уже существует у этой организации/подразделения.";
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return;
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}
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ValidationMessage = string.Empty;
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RaiseCloseRequested(true);
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}
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private void RaiseCloseRequested(bool? dialogResult)
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{
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var handler = CloseRequested;
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if (handler != null)
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{
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handler(this, dialogResult);
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}
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}
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}
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}
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