Table of Contents

Class VirtualizingCarouselPanel

Namespace
Avalonia.Controls
Assembly
Avalonia.Controls.dll

A panel used by Carousel to display the current item.

public class VirtualizingCarouselPanel : VirtualizingPanel, INotifyPropertyChanged, IDataContextProvider, ILogical, IThemeVariantHost, IResourceHost, IResourceNode, IStyleHost, ISetLogicalParent, ISetInheritanceParent, ISupportInitialize, IStyleable, INamed, IInputElement, IDataTemplateHost, ISetterValue, IChildIndexProvider, INavigableContainer, ILogicalScrollable, IScrollable
Inheritance
VirtualizingCarouselPanel
Implements
Inherited Members
Extension Methods

Constructors

VirtualizingCarouselPanel() 

public VirtualizingCarouselPanel()

Methods

ArrangeOverride(Size)

Positions child elements as part of a layout pass.

protected override Size ArrangeOverride(Size finalSize)

Parameters

finalSize Size

The size available to the control.

Returns

Size

The actual size used.

ContainerFromIndex(int)

Returns the container for the item at the specified index.

protected override Control? ContainerFromIndex(int index)

Parameters

index int

The index of the item to retrieve.

Returns

Control

The container for the item at the specified index within the item collection, if the item is realized; otherwise, null.

Remarks

Note for implementors: if the item at the specified index is an ItemIsOwnContainer item that has previously been realized, then the item should be returned even if it currently falls outside the realized viewport.

GetControl(NavigationDirection, IInputElement?, bool)

Gets the next control in the specified direction.

protected override IInputElement? GetControl(NavigationDirection direction, IInputElement? from, bool wrap)

Parameters

direction NavigationDirection

The movement direction.

from IInputElement

The control from which movement begins.

wrap bool

Whether to wrap around when the first or last item is reached.

Returns

IInputElement

The control.

GetRealizedContainers()

Gets the currently realized containers.

protected override IEnumerable<Control>? GetRealizedContainers()

Returns

IEnumerable<Control>

IndexFromContainer(Control)

Returns the index to the item that has the specified realized container.

protected override int IndexFromContainer(Control container)

Parameters

container Control

The generated container to retrieve the item index for.

Returns

int

The index to the item that corresponds to the specified realized container, or -1 if container is not found.

MeasureOverride(Size)

Measures the control and its child elements as part of a layout pass.

protected override Size MeasureOverride(Size availableSize)

Parameters

availableSize Size

The size available to the control.

Returns

Size

The desired size for the control.

OnItemsChanged(IReadOnlyList<object?>, NotifyCollectionChangedEventArgs)

Called when the Items collection of the owner ItemsControl changes.

protected override void OnItemsChanged(IReadOnlyList<object?> items, NotifyCollectionChangedEventArgs e)

Parameters

items IReadOnlyList<object>

The items.

e NotifyCollectionChangedEventArgs

The event args.

Remarks

This method is called a INotifyCollectionChanged event is raised by the items, or when the Items property is assigned a new collection, in which case the NotifyCollectionChangedAction will be Reset.

ScrollIntoView(int)

Scrolls the specified item into view.

protected override Control? ScrollIntoView(int index)

Parameters

index int

The index of the item.

Returns

Control

The element with the specified index, or null if the element could not be brought into view.