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与这个问题非常相似,我想删除异步加载时出现的空值ValueListBox。我不会事先知道我的对象列表中可能呈现的任何值,所以我不能调用setValue(beforeHandVal). 设置setAcceptableValues(Collections.emptyList())不起作用。有没有办法做到这一点?
ValueListBox
setValue(beforeHandVal)
setAcceptableValues(Collections.emptyList())