In many cases, this feature can be created, with varying degrees of difficulty, by creating custom controls or containers of controls or by other custom programming.

在很多情况中，这种特性都可以通过创建定制控件或控件容器或利用其他定制编程来实现，不过实现的难度会有所不同。

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Cartons, boxes, cases, bags and other packing containers, of paper, paperboard, cellulose wadding or webs of cellulose fibres;

纸、纸板、纤维素絮纸或纤维素纤维网制的箱、盒、匣、袋及其他包装容器；

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