Summary

Represents the base class for layout context types that support virtualization.

Namespace

Interfaces

IAvaloniaObject
IAvaloniaObjectDebug
INotifyPropertyChanged
IValueSink

Base Types

graph BT Type-->Base0["LayoutContext"] click Base0 "/api/Avalonia.Layout/LayoutContext" Base0-->Base1["AvaloniaObject"] click Base1 "/api/Avalonia/AvaloniaObject" Base1-->Base2["object"] Type-.->Interface0["IAvaloniaObject"] click Interface0 "/api/Avalonia/IAvaloniaObject" Type-.->Interface1["IAvaloniaObjectDebug"] click Interface1 "/api/Avalonia.Diagnostics/IAvaloniaObjectDebug" Type-.->Interface2["INotifyPropertyChanged"] Type-.->Interface3["IValueSink"] Type["VirtualizingLayoutContext"] class Type type-node

Syntax

public abstract class VirtualizingLayoutContext : LayoutContext, IAvaloniaObject, 
    IAvaloniaObjectDebug, INotifyPropertyChanged, IValueSink

Events

Name	Type	Summary
PropertyChanged	EventHandler<AvaloniaPropertyChangedEventArgs>	Raised when a `AvaloniaProperty` value changes on this object. Inherited from AvaloniaObject

Properties

Name	Value	Summary
InheritanceParent	IAvaloniaObject	Gets or sets the parent object that inherited `AvaloniaProperty` values are inherited from. Inherited from AvaloniaObject
ItemCount	int	Gets the number of items in the data.
LayoutOrigin	Point	Gets or sets the origin point for the estimated content size.
LayoutOriginCore	Point	Implements the behavior of LayoutOrigin in a derived or custom VirtualizingLayoutContext.
LayoutState	object	Gets or sets an object that represents the state of a layout. Inherited from LayoutContext
LayoutStateCore	object	Implements the behavior of `LayoutState` in a derived or custom LayoutContext. Inherited from LayoutContext
RealizationRect	Rect	Gets an area that represents the viewport and buffer that the layout should fill with realized elements.
RecommendedAnchorIndex	int	Gets the recommended index from which to start the generation and layout of elements.
RecommendedAnchorIndexCore	int	Implements the behavior for getting the return value of RecommendedAnchorIndex in a derived or custom `VirtualizingLayoutContext`.
this[AvaloniaProperty]	object	Gets or sets the value of a `AvaloniaProperty`. Inherited from AvaloniaObject
this[IndexerDescriptor]	IBinding	Gets or sets a binding for a `AvaloniaProperty`. Inherited from AvaloniaObject

Methods

Name	Value	Summary
BeginBatchUpdate()	void	Inherited from AvaloniaObject
Bind<T>(DirectPropertyBase<T>, IObservable<BindingValue<T>>)	IDisposable	Binds a `AvaloniaProperty` to an observable. Inherited from AvaloniaObject
Bind<T>(StyledPropertyBase<T>, IObservable<BindingValue<T>>, BindingPriority)	IDisposable	Binds a `AvaloniaProperty` to an observable. Inherited from AvaloniaObject
CheckAccess()	bool	Inherited from AvaloniaObject
ClearValue(AvaloniaProperty)	void	Clears a `AvaloniaProperty`'s local value. Inherited from AvaloniaObject
ClearValue<T>(AvaloniaProperty<T>)	void	Clears a `AvaloniaProperty`'s local value. Inherited from AvaloniaObject
ClearValue<T>(DirectPropertyBase<T>)	void	Clears a `AvaloniaProperty`'s local value. Inherited from AvaloniaObject
ClearValue<T>(StyledPropertyBase<T>)	void	Clears a `AvaloniaProperty`'s local value. Inherited from AvaloniaObject
CoerceValue<T>(StyledPropertyBase<T>)	void	Coerces the specified `AvaloniaProperty`. Inherited from AvaloniaObject
EndBatchUpdate()	void	Inherited from AvaloniaObject
Equals(object)	bool	Compares two objects using reference equality. Inherited from AvaloniaObject
GetBaseValue<T>(StyledPropertyBase<T>, BindingPriority)	Optional<T>	Gets an `AvaloniaProperty` base value. Inherited from AvaloniaObject
GetHashCode()	int	Gets the hash code for the object. Inherited from AvaloniaObject
GetItemAt(int)	object	Retrieves the data item in the source found at the specified index.
GetItemAtCore(int)	object	When implemented in a derived class, retrieves the data item in the source found at the specified index.
GetOrCreateElementAt(int)	ILayoutable	Retrieves a UIElement that represents the data item in the source found at the specified index. By default, if an element already exists, it is returned; otherwise, a new element is created.
GetOrCreateElementAt(int, ElementRealizationOptions)	ILayoutable	Retrieves a UIElement that represents the data item in the source found at the specified index using the specified options.
GetOrCreateElementAtCore(int, ElementRealizationOptions)	ILayoutable	When implemented in a derived class, retrieves a UIElement that represents the data item in the source found at the specified index using the specified options.
GetValue(AvaloniaProperty)	object	Gets a `AvaloniaProperty` value. Inherited from AvaloniaObject
GetValue<T>(DirectPropertyBase<T>)	T	Gets a `AvaloniaProperty` value. Inherited from AvaloniaObject
GetValue<T>(StyledPropertyBase<T>)	T	Gets a `AvaloniaProperty` value. Inherited from AvaloniaObject
IsAnimating(AvaloniaProperty)	bool	Checks whether a `AvaloniaProperty` is animating. Inherited from AvaloniaObject
IsSet(AvaloniaProperty)	bool	Checks whether a `AvaloniaProperty` is set on this object. Inherited from AvaloniaObject
ItemCountCore()	int	When implemented in a derived class, retrieves the number of items in the data.
RealizationRectCore()	Rect	When implemented in a derived class, retrieves an area that represents the viewport and buffer that the layout should fill with realized elements.
RecycleElement(ILayoutable)	void	Clears the specified UIElement and allows it to be either re-used or released.
RecycleElementCore(ILayoutable)	void	When implemented in a derived class, clears the specified UIElement and allows it to be either re-used or released.
SetValue(AvaloniaProperty, object, BindingPriority)	void	Sets a `AvaloniaProperty` value. Inherited from AvaloniaObject
SetValue<T>(DirectPropertyBase<T>, T)	void	Sets a `AvaloniaProperty` value. Inherited from AvaloniaObject
SetValue<T>(StyledPropertyBase<T>, T, BindingPriority)	IDisposable	Sets a `AvaloniaProperty` value. Inherited from AvaloniaObject
VerifyAccess()	void	Inherited from AvaloniaObject

Extension Methods