Experimental: this API is experimental and might be changed or removed in the future.

FocusEventBase<T0>.relatedTarget

切换到手册
public Experimental.UIElements.Focusable relatedTarget ;

描述

对于 FocusOut 和 Blur 事件,是获取焦点的元素。对于 FocusIn 和 Focus 事件,是失去焦点的元素。