问题描述
大家好，已经搜索了这个但是找不到答案...
我有一些组合框限制了标题中的连续子表单主要形式。
目前，如果它们是空白的，则由于我的基础查询中的以下代码而显示所有结果：
（（Tbl_Schedule.Machine ）=表格！Frm_Schedule！ComboMa chine或Forms！Frm_Schedule！ComboMachine Null）
有没有办法在我的每个组合框中都有一个''显示所有结果''行这样可以选择并显示所有结果吗？
希望你能帮忙，OllyJ
Hi guys, have searched for this but can''t find an answer...
I have a number of combo boxes that limit a continuous subform in the header of the main form.
Currently, if they are blank, all results are shown due to the following code in my underlying query:
((Tbl_Schedule.Machine)=Forms!Frm_Schedule!ComboMa chine Or Forms!Frm_Schedule!ComboMachine Is Null)
Is there any way of having a ''show all results'' row in each of my combo boxes so that this can be selected and all results shown?
Hope you can help, OllyJ
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