Version: 2023.2
LanguageEnglish
  • C#

EventInterestAttribute

class in UnityEngine.UIElements

/

Implemented in:UnityEngine.UIElementsModule

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

Optional attribute on overrides of CallbackEventHandler.HandleEventBubbleUp.

Use this to specify all the event types that these methods require to operate. If an override of one of these methods doesn't have any EventInterestAttribute, UI Toolkit will assume that the method doesn't have enough information on what event types it needs, and will conservatively send all incoming events to that method. It is generally a good idea to use the EventInterestAttribute attribute because it allows UI Toolkit to perform optimizations and not calculate all the information related to an event if it isn't used by the method that would receive it.

Constructors

EventInterestAttribute Use this constructor when the affected method uses only specific event types that can easily be determined at compile time. Multiple EventInterestAttribute can be used on the same method to add more type interests.