The ItemsView extensions provide a series of extension methods that support configuring ItemsView controls such as CarouselView and CollectionView.
The extensions offer the following methods:
EmptyViewThe EmptyView method sets the EmptyView property on an ItemsView element.
The following example sets the EmptyView to a new Label with text "The Collection is Empty":
new CollectionView().EmptyView(new Label().Text("The Collection is Empty"));
The EmptyViewTemplate method sets the EmptyViewTemplate property on an ItemsView element.
The following example sets the EmptyViewTemplate to a new DataTemplate containing a Label with text "The Collection is Empty":
new CollectionView().EmptyViewTemplate(new DataTemplate(() => new Label().Text("The Collection is Empty")));
The ItemsSource method sets the ItemsSource property on an ItemsView element.
The following example sets the ItemsSource to new string[] { "C#", "Markup", "Extensions" }
new CollectionView().ItemsSource(new string[] { "C#", "Markup", "Extensions" });
The HorizontalScrollBarVisibility method sets the HorizontalScrollBarVisibility property on an ItemsView element.
The following example sets the HorizontalScrollBarVisibility to ScrollBarVisibility.Never:
new CollectionView().HorizontalScrollBarVisibility(ScrollBarVisibility.Never);
The VerticalScrollBarVisibility method sets the VerticalScrollBarVisibility property on an ItemsView element.
The following example sets the VerticalScrollBarVisibility to ScrollBarVisibility.Never
new CollectionView().VerticalScrollBarVisibility(ScrollBarVisibility.Never);
The ScrollBarVisibility method sets both the VerticalScrollBarVisibility and HorizontalScrollBarVisibility properties on an ItemsView element.
The following example sets both the VerticalScrollBarVisibility and HorizontalScrollBarVisibility to ScrollBarVisibility.Never:
new CollectionView().ScrollBarVisibility(ScrollBarVisibility.Never);
The RemainingItemsThreshold method sets the RemainingItemsThreshold property on an ItemsView element.
The following example sets the RemainingItemsThreshold to 10:
new CollectionView().RemainingItemsThreshold(10);
The RemainingItemsThresholdReachedCommand method sets the RemainingItemsThresholdReachedCommand property on an ItemsView element.
The following example sets the RemainingItemsThresholdReachedCommand to a new Command:
new CollectionView().RemainingItemsThresholdReachedCommand(new Command(async () => await DisplayAlert("Threshold Reached", "", "OK")));
Theere is a second overload that sets both the RemainingItemsThresholdReachedCommand property and the RemainingItemsThresholdReachedCommandParameter property.
The following example sets the RemainingItemsThresholdReachedCommand to a new Command<string> and sets the RemainingItemsThresholdReachedCommandParameter to "No Items Remaining":
new CollectionView().RemainingItemsThresholdReachedCommand(new Command<string>(async text => await DisplayAlert("Threshold Reached", text, "OK"), "No Items Remaining"));
The RemainingItemsThresholdReachedCommandParameter method sets the RemainingItemsThresholdReachedCommandParameter property on an ItemsView element.
The following example sets the RemainingItemsThresholdReachedCommandParameter to "Hello World":
new CollectionView().RemainingItemsThresholdReachedCommandParameter("Hello World");
The ItemTemplate method sets the ItemTemplate property on an ItemsView element.
The following example sets the ItemTemplate to a new DataTemplate containing a Label whose TextProperty is bound to the ItemsSource:
new CollectionView().ItemTemplate(new DataTemplate(() => new Label().Bind(Label.TextProperty, Binding.SelfPath)));
The ItemsUpdatingScrollMode method sets the ItemsUpdatingScrollMode property on an ItemsView element.
The following example sets the ItemsUpdatingScrollMode to ItemsUpdatingScrollMode.KeepLastItemInView:
new CollectionView().ItemsUpdatingScrollMode(ItemsUpdatingScrollMode.KeepLastItemInView);
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