ViewportBehavior Class
Definition
Important
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A class for listening element enter or exit the ScrollViewer viewport
public class ViewportBehavior : CommunityToolkit.WinUI.UI.Behaviors.BehaviorBase<Microsoft.UI.Xaml.FrameworkElement>type ViewportBehavior = class
inherit BehaviorBase<FrameworkElement>Public Class ViewportBehavior
Inherits BehaviorBase(Of FrameworkElement)- Inheritance
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Microsoft.Xaml.Interactivity.Behavior<T>BehaviorBase<Microsoft.UI.Xaml.FrameworkElement>ViewportBehavior
Constructors
| ViewportBehavior() |
Fields
| IsAlwaysOnProperty |
The IsAlwaysOn value of the associated element |
| IsFullyInViewportProperty |
The IsFullyInViewport value of the associated element |
| IsInViewportProperty |
The IsInViewport value of the associated element |
Properties
| IsAlwaysOn |
Gets or sets a value indicating whether this behavior will remain attached after the associated element enters the viewport. When false, the behavior will remove itself after entering. |
| IsAttached |
Gets a value indicating whether this behavior is attached. (Inherited from BehaviorBase<T>) |
| IsFullyInViewport |
Gets a value indicating whether associated element is fully in the ScrollViewer viewport |
| IsInViewport |
Gets a value indicating whether associated element is in the ScrollViewer viewport |
Methods
| Initialize() |
Initializes the behavior to the associated object. (Inherited from BehaviorBase<T>) |
| OnAssociatedObjectLoaded() |
Called when the associated object has been loaded. (Inherited from BehaviorBase<T>) |
| OnAssociatedObjectUnloaded() |
Called when the associated object has been unloaded. (Inherited from BehaviorBase<T>) |
| OnAttached() |
Called after the behavior is attached to the Microsoft.Xaml.Interactivity.Behavior.AssociatedObject. |
| OnDetaching() |
Called when the behavior is being detached from its Microsoft.Xaml.Interactivity.Behavior.AssociatedObject. |
| Uninitialize() |
Uninitializes the behavior from the associated object. (Inherited from BehaviorBase<T>) |
Events
| EnteredViewport |
Associated element fully enter the ScrollViewer viewport event |
| EnteringViewport |
Associated element enter the ScrollViewer viewport event |
| ExitedViewport |
Associated element fully exit the ScrollViewer viewport event |
| ExitingViewport |
Associated element exit the ScrollViewer viewport event |