Version: 2021.3
LanguageEnglish
  • C#

PropagationPhase

enumeration

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Description

The propagation phases of an event.

&gt;When an element receives an event, the event propagates from the panel's root element to the target element.

In the TrickleDown phase, the event is sent from the panel's root element to the target element's parent.

In the AtTarget phase, the event is sent to the target element.

In the BubbleUp phase, the event is sent from the target element's parent back to the panel's root element.

In the last phase, the DefaultAction phase, the event is resent to the target element.

Properties

None The event is not propagated.
TrickleDown The event is sent from the panel's root element to the target element's parent.
AtTarget The event is sent to the target.
DefaultActionAtTarget The event is sent to the target element, which can then execute its default actions for the event at the target phase. Event handlers do not receive the event in this phase. Instead, ExecuteDefaultActionAtTarget is called on the target element.
BubbleUp The event is sent from the target element's parent back to the panel's root element.
DefaultAction The event is sent to the target element, which can then execute its final default actions for the event. Event handlers do not receive the event in this phase. Instead, ExecuteDefaultAction is called on the target element.