protected async override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
eventHandlers
.Add <CurrencyCreated>(this)
.Add <CurrencyDefaultChanged>(this)
.Add <CurrencyExchangeRateSet>(this)
.Add <CurrencyExchangeRateRemoved>(this)
.Add <CurrencySymbolChanged>(this)
.Add <CurrencyDeleted>(this);
CurrencyParameter parameter = (CurrencyParameter)e.Parameter;
IEnumerable <CurrencyModel> models = await queryDispatcher.QueryAsync(new ListAllCurrency());
ViewModel = new CurrencyListViewModel(navigator);
foreach (CurrencyModel model in models)
{
ViewModel.Items.Add(new CurrencyEditViewModel(navigator, commandDispatcher, messageBuilder, queryDispatcher, model.UniqueCode, model.Symbol));
}
UpdateStandalone();
CurrencyModel defaultModel = models.FirstOrDefault(c => c.IsDefault);
if (defaultModel != null)
{
UpdateDefaultCurrency(defaultModel.UniqueCode);
}
ContentLoaded?.Invoke(this, EventArgs.Empty);
}
public static UiThreadEventHandler <T> AddUiThread <T>(this IEventHandlerCollection handlers, IEventHandler <T> handler, CoreDispatcher synchronizer)
{
Ensure.NotNull(handlers, "handlers");
UiThreadEventHandler <T> threadHandler = new UiThreadEventHandler <T>(handler, synchronizer);
handlers.Add <T>(threadHandler);
return(threadHandler);
}
/// <summary>
/// Returns continuation task that is completed when <paramref name="eventHandlers"/> gets
/// notification for event of the type <typeparamref name="T"/> and <paramref name="filter"/> is satisfied.
/// </summary>
/// <typeparam name="T">The type of the event (can contain <see cref="Envelope"/> or <see cref="IEventHandlerContext{T}"/>).</typeparam>
/// <param name="eventHandlers">The collection of an event handlers.</param>
/// <param name="filter">The event filter, only the event for which returns true is used to complete the task.</param>
/// <param name="token">The continuation task cancellation token.</param>
/// <returns>
/// Continuation task that is completed when <paramref name="eventHandlers"/> gets
/// notification for event of the type <typeparamref name="T"/> and <paramref name="filter"/> is satisfied.
/// </returns>
public static Task <T> Await <T>(this IEventHandlerCollection eventHandlers, Func <T, bool> filter, CancellationToken token)
{
Ensure.NotNull(eventHandlers, "eventHandlers");
Ensure.NotNull(filter, "filter");
Ensure.NotNull(token, "token");
TaskCompletionSource <T> source = new TaskCompletionSource <T>();
eventHandlers.Add(new AwaitEventHandler <T>(eventHandlers, source, token, filter));
return(source.Task);
}
