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The WeakEventListener allows the owner to be garbage collected if its only remaining link is an event handler.
Properties
| Property | Type | Description |
|---|---|---|
| OnDetachAction | WeakEventListener<TInstance,TSource,TEventArgs>> | Gets or sets the method to call when detaching from the event |
| OnEventAction | Action<TInstance,TSource,TEventArgs> | Gets or sets the method to call when the event fires |
Methods
| Methods | Return Type | Description |
|---|---|---|
| Detach() | void | Detaches from the subscribed event |
| OnEvent(TSource, TEventArgs) | void | Handler for the subscribed event calls OnEventAction to handle it |
Sample Code
You can find examples of WeakEventListener in our unit tests
Requirements
| Device family | Universal, 10.0.16299.0 or higher |
|---|---|
| Namespace | Microsoft.Toolkit.Uwp |
| NuGet package | Microsoft.Toolkit.Uwp |