If the document is not being loaded in edit mode, then the formula simply retains that value and stops executing (see figure 1).
如果不是以编辑模式加载文档，则公式将只是保持该值并停止执行(参见图1)。
2
This allows the keyword drop-down formula to recalculate if the user switches from read mode to edit mode as long as the document is forced to refresh.
如果用户从读模式转换到编辑模式，则此属性可让关键字下拉公式在强制刷新文档时重新计算。
3
In other cases, you may want this lookup to be performed every time the document is opened in edit mode. In this case, rewrite the formula as follows.