public SearchPage() { NavigationPage.SetHasNavigationBar(this, false); InitializeComponent(); BindingContext = this.searchViewModel = new SearchViewModel(); SearchListView.ItemsSource = searchViewModel.SearchList; SearchText.Completed += (sender, e) => { Search_Clicked(sender, e); }; SearchProgress.SetBinding(IsVisibleProperty, nameof(searchViewModel.IsProgressVisible)); SearchButton.SetBinding(IsVisibleProperty, nameof(searchViewModel.IsButtonVisible)); }