IEventTarget.AddEventListener
AddEventListener(string, IEventListener)
This method allows the registration of event listeners on the event target.
public void AddEventListener(string type, IEventListener listener)
| Parameter | Type | Description |
|---|---|---|
| type | String | The event type for which the user is registering |
| listener | IEventListener | Takes an interface implemented by the user which contains the methods to be called when the event occurs. |
Remarks
If an IEventListener is added to an EventTarget while it is processing an event, it will not be triggered by the current actions but may be triggered during a later stage of event flow, such as the bubbling phase.
If multiple identical Event Listeners are registered on the same EventTarget with the same parameters the duplicate instances are discarded. They do not cause the IEventListener to be called twice and since they are discarded they do not need to be removed with the RemoveEventListener method.
See Also
- interface IEventListener
- interface IEventTarget
- namespace Aspose.Svg.Dom.Events
- assembly Aspose.SVG
AddEventListener(string, IEventListener, bool)
This method allows the registration of event listeners on the event target.
public void AddEventListener(string type, IEventListener listener, bool useCapture)
| Parameter | Type | Description |
|---|---|---|
| type | String | The event type for which the user is registering |
| listener | IEventListener | Takes an interface implemented by the user which contains the methods to be called when the event occurs. |
| useCapture | Boolean | If true, useCapture indicates that the user wishes to initiate capture. After initiating capture, all events of the specified type will be dispatched to the registered IEventListener before being dispatched to any Event Targets beneath them in the tree. Events which are bubbling upward through the tree will not trigger an IEventListener designated to use capture. |
Remarks
If an IEventListener is added to an EventTarget while it is processing an event, it will not be triggered by the current actions but may be triggered during a later stage of event flow, such as the bubbling phase.
If multiple identical Event Listeners are registered on the same EventTarget with the same parameters the duplicate instances are discarded. They do not cause the IEventListener to be called twice and since they are discarded they do not need to be removed with the RemoveEventListener method.
See Also
- interface IEventListener
- interface IEventTarget
- namespace Aspose.Svg.Dom.Events
- assembly Aspose.SVG
