This document describes a technique for report developers that wish to utilize a Tree Prompt but require that the value submitted be restricted to a designated level within a hierarchy.

报表开发人员可能希望使用Tree Prompt，但是需要把提交的值限制为层次结构中指定的层，本文档介绍的技术可以满足这一需求。

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To conclude, I wish the friendship tree between the Chinese and European young people be evergreen, and I wish the China-EU Year of Youth a crowning success!

最后，祝中欧青年友谊之树常青！ “中欧青年交流年”圆满成功！

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In our case, we can define a tree structure for the printers that we wish to protect.

在我们的示例中，我们可以为希望保护的打印机定义一个树形结构。

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