protected override void OnNavigatedFrom(NavigationEventArgs e)
{
base.OnNavigatedFrom(e);
eventHandlers
.Remove <CurrencyCreated>(this)
.Remove <CurrencyDefaultChanged>(this)
.Remove <CurrencyExchangeRateSet>(this)
.Remove <CurrencyExchangeRateRemoved>(this)
.Remove <CurrencySymbolChanged>(this)
.Remove <CurrencyDeleted>(this);
}
private void OnCancellationRequested()
{
collection.Remove(this);
source.TrySetCanceled();
}
