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Two Combobox from the same SharePoint list, exclude selection from one of the comboboxes

Hello -


I have two comboboxes on my app that both pull from the same SharePoint list. Is there a way to exclude the option that was selected from the first combobox in the second combobox, or vice versa?

Super User
Super User

Hi @sud ,

You cannot do both (that is a circular reference where controls refer to each other), but you can certainly filter one to exclude the item selected in the other - the code would depend on the Items of the Combo Box


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Good to know. If I have items like this in the SharePoint list: Dell, Microsoft, Apple, HP


So in the first combobox I have all of the options available (Dell, Microsoft, Apple, HP), and if I select Apple, the second box only shows Dell, Microsoft, HP.


How would I be able to exclude Apple from the second combobox?

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