NonVirtualizingLayout Class
Definition
Important
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Represents the base class for an object that sizes and arranges child elements for a host and and does not support virtualization.
/// [Microsoft.UI.Xaml.CustomAttributes.MUXContractProperty(version=0)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Version(1)]
class NonVirtualizingLayout : Layout/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.XamlContract, 65536)]
class NonVirtualizingLayout : Layout[Microsoft.UI.Xaml.CustomAttributes.MUXContractProperty(version=0)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Version(1)]
public class NonVirtualizingLayout : Layout[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.XamlContract), 65536)]
public class NonVirtualizingLayout : LayoutPublic Class NonVirtualizingLayout
Inherits Layout- Inheritance
- Derived
- Attributes
-
Microsoft.UI.Xaml.CustomAttributes.MUXContractPropertyAttribute MarshalingBehaviorAttribute ThreadingAttribute VersionAttribute ContractVersionAttribute
Remarks
NonVirtualizingLayout is the base class for layouts that do not support virtualization. You can inherit from it to create your own layout.
A non-virtualizing layout can measure and arrange child elements.
Constructors
| NonVirtualizingLayout() |
Initializes a new instance of the NonVirtualizingLayout class. |
Properties
| Dispatcher |
Always returns |
| DispatcherQueue |
Gets the |
| IndexBasedLayoutOrientation |
Gets the orientation, if any, in which items are laid out based on their index in the source collection. (Inherited from Layout) |
Methods
| Arrange(LayoutContext, Size) |
Positions child elements and determines a size for a container UIElement. Container elements that support attached layouts should call this method from their layout override implementations to form a recursive layout update. (Inherited from Layout) |
| ArrangeOverride(NonVirtualizingLayoutContext, Size) |
When implemented in a derived class, provides the behavior for the "Arrange" pass of layout. Classes can override this method to define their own "Arrange" pass behavior. |
| ClearValue(DependencyProperty) |
Clears the local value of a dependency property. (Inherited from DependencyObject) |
| CreateDefaultItemTransitionProvider() | (Inherited from Layout) |
| GetAnimationBaseValue(DependencyProperty) |
Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject) |
| GetValue(DependencyProperty) |
Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject) |
| InitializeForContext(LayoutContext) |
Initializes any per-container state the layout requires when it is attached to a UIElement container. (Inherited from Layout) |
| InitializeForContextCore(NonVirtualizingLayoutContext) |
When overridden in a derived class, initializes any per-container state the layout requires when it is attached to a UIElement container. |
| InvalidateArrange() |
Invalidates the arrange state (layout) for all UIElement containers that reference this layout. After the invalidation, the UIElement will have its layout updated, which occurs asynchronously. (Inherited from Layout) |
| InvalidateMeasure() |
Invalidates the measurement state (layout) for all UIElement containers that reference this layout. (Inherited from Layout) |
| Measure(LayoutContext, Size) |
Suggests a DesiredSize for a container element. A container element that supports attached layouts should call this method from their own MeasureOverride implementations to form a recursive layout update. The attached layout is expected to call the Measure for each of the container’s UIElement children. (Inherited from Layout) |
| MeasureOverride(NonVirtualizingLayoutContext, Size) |
Provides the behavior for the "Measure" pass of the layout cycle. Classes can override this method to define their own "Measure" pass behavior. |
| ReadLocalValue(DependencyProperty) |
Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject) |
| RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback) |
Registers a notification function for listening to changes to a specific DependencyProperty on this DependencyObject instance. (Inherited from DependencyObject) |
| SetIndexBasedLayoutOrientation(IndexBasedLayoutOrientation) |
Sets the value of the |
| SetValue(DependencyProperty, Object) |
Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject) |
| UninitializeForContext(LayoutContext) |
Removes any state the layout previously stored on the UIElement container. (Inherited from Layout) |
| UninitializeForContextCore(NonVirtualizingLayoutContext) |
When overridden in a derived class, removes any state the layout previously stored on the UIElement container. |
| UnregisterPropertyChangedCallback(DependencyProperty, Int64) |
Cancels a change notification that was previously registered by calling RegisterPropertyChangedCallback. (Inherited from DependencyObject) |
Events
| ArrangeInvalidated |
Occurs when the arrange state (layout) has been invalidated. (Inherited from Layout) |
| MeasureInvalidated |
Occurs when the measurement state (layout) has been invalidated. (Inherited from Layout) |