Hello everyone,
I have a form with several ComboBoxes. The sources of these comboboxes are different. After I first submitted the form, the value of the selected combobox was missing if I'd like to modify it. ("项目号" is the first ComboBox, "医院名称（官方）" is the second ComboBox)
The screenshot below is the List where the edit form is submitted. The selected value of the second combobox is missing. And sometimes, the first combobox is missing.
Here is the code of ComboBox.
Thanks in advance!
Accepted Solutions
Hi @v-yueyun-msft , 当我首次提交form的时候，选择的combobox的内容都可以同步到list中，但是如果想修改form的其他内容，之前选择的combobox的内容就都会消失。下方截图是combobox1 和 combobox3所在的datacard的update属性
Hi, @v-yueyun-msft
感谢您的回复。
是的，第一次提交表单以后可以正确提交这两个值，然后当你在Power App 中想要修改其他值后再次提交，这两个值变为了空。
第二次提交的时候，Form -item 属性如下图（datatable1是把list的内容以table形式展现出来在power apps中的）
修改的时候，Combo box 的默认值如下图：
Hi , @Wenxi
在你第二次提交的时候，你可以选中代码来检查你的这两个列的值是否存在：
其次，你需要检查在你的DefaultSelectedItems 和 DataCard 的Update 属性中是否可以正确返回值：
这有可能是跟你的DelfaultSelectItems 和Update 属性有关系。
Best Regards,
Yueyun Zhang
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