Version: 2019.3
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  • C#

CallbackEventHandler.RegisterCallback

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public void RegisterCallback(EventCallback<TEventType> callback, UIElements.TrickleDown useTrickleDown);
public void RegisterCallback(EventCallback<TEventType,TUserArgsType> callback, TUserArgsType userArgs, UIElements.TrickleDown useTrickleDown);

Parameters

callbackThe event handler to add.
useTrickleDownBy default, this callback is called during the BubbleUp phase. Pass TrickleDown.TrickleDown to call this callback during the TrickleDown phase.
userArgsData to pass to the callback.

Description

Adds an event handler to the instance. If the event handler has already been registered for the same phase (either TrickleDown or BubbleUp) then this method has no effect.

Is something described here not working as you expect it to? It might be a Known Issue. Please check with the Issue Tracker at issuetracker.unity3d.com.

Copyright © 2020 Unity Technologies. Publication Date: 2020-06-05.
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