CallbackEventHandler.HasBubbleUpHandlers

public bool HasBubbleUpHandlers();

Returns

bool True if object has event handlers for the BubbleUp phase.

Description

Return true if event handlers for the event propagation BubbleUp phase have been attached on this object.

对文档有任何疑问,请移步至开发者社区提问,我们将尽快为您解答