protected override async Task CloseMayOverrideAsync()
		{
			var vm = _vm;
			if (vm != null)
			{
				await vm.CloseAsync();
				vm.Dispose();
				VM = null;
			}

			//await BriefcaseCoverView.CloseAsync().ConfigureAwait(false);

			await AnimationsControl.CloseAsync().ConfigureAwait(false);
		}
		protected override async Task OpenMayOverrideAsync(object args = null)
		{
			await AnimationsControl.OpenAsync();

			if (_vm == null) _vm = new BriefcaseVM(_animationStarter);
			await _vm.OpenAsync().ConfigureAwait(true);
			RaisePropertyChanged_UI(nameof(VM));

			//await BriefcaseCoverView.OpenAsync().ConfigureAwait(false);

			await AnimationsControl.OpenAsync().ConfigureAwait(true);

			//RegisterIsShowingBinderHandler();
			// LOLLO NOTE do not set the datacontext of the whole control or it will alter the dependency properties, if any. 
			// Instead, set LayoutRoot.DataContext, where LayoutRoot is the main child of the Page or UserControl.
			// For example:
			// LayoutRoot.DataContext = VM;
		}
		//private void OnThreeBtnDialog_Closed(object sender, object e)
		//{
		//	_isHasUserAnswered = true;
		//}

		private void OnThreeBtnDialogContent_UserAnswered(object sender, BriefcaseVM.ImportBinderOperations e)
		{
			_isHasUserAnswered = true;
		}