Class TargetedTriggerAction<T>

Represents an action that can be targeted to affect an object other than its AssociatedObject.

Inheritance
System.Object
DependencyObject
TriggerAction
TargetedTriggerAction
TargetedTriggerAction<T>
ChangePropertyAction
GoToStateAction
RemoveElementAction
Implements
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: System.Windows.Interactivity
Assembly: OpenSilver.Interactivity.dll
Syntax
public abstract class TargetedTriggerAction<T> : TargetedTriggerAction, IAttachedObject where T : class
Type Parameters
Name Description
T

The type constraint on the target.
Remarks

TargetedTriggerAction extends TriggerAction to add knowledge of another element than the one it is attached to. This allows a user to invoke the action on an element other than the one it is attached to in response to a trigger firing. Override OnTargetChanged to hook or unhook handlers on the target element, and OnAttached/OnDetaching for the associated element. The type of the Target element can be constrained by the generic type parameter. If you need control over the type of the AssociatedObject, set a TypeConstraintAttribute on your derived type.

Constructors

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TargetedTriggerAction()

Initializes a new instance of the TargetedTriggerAction<T> class.

Declaration
protected TargetedTriggerAction()

Properties

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Target

Gets the target object. If TargetName is not set or cannot be resolved, defaults to the AssociatedObject.

Declaration
protected T Target { get; }
Property Value
Type Description
T

The target.
Remarks

In general, this property should be used in place of AssociatedObject in derived classes.

Methods

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OnTargetChanged(T, T)

Called when the target property changes.

Declaration
protected virtual void OnTargetChanged(T oldTarget, T newTarget)
Parameters
Type Name Description
T oldTarget

The old target.
T newTarget

The new target.
Remarks

Override this to hook and unhook functionality on the specified Target, rather than the AssociatedObject.

Implements

Extension Methods