private async Task WatchTaskAsync(Task task)
{
await task;
var handler = PropertyChanged;
if (handler == null)
{
return;
}
void Notify(string propertyName) => handler(this, PropertyChangedEventArgsCache.GetEventArgs(propertyName));
Notify(nameof(Status));
Notify(nameof(IsCompleted));
Notify(nameof(IsNotCompleted));
if (task.IsCanceled)
{
Notify(nameof(IsCanceled));
}
else if (task.IsFaulted)
{
Notify(nameof(IsFaulted));
Notify(nameof(Exception));
Notify(nameof(InnerException));
Notify(nameof(ErrorMessage));
}
else
{
Notify(nameof(IsSuccessfullyCompleted));
Notify(nameof(Result));
}
}
protected void PropertyChanged(string propertyName)
{
PropertyChangedEventArgs eventArgs = PropertyChangedEventArgsCache.GetEventArgs(propertyName);
_propertyChangedHandler?.Invoke(this, eventArgs);
}