Prevent duplicate entries in a SharePoint list using Jquery

Question

Hello,

I have to prevent duplicate values based on two columns. I've tried the code referenced here: https://www.codeproject.com/Tips/1205585/Unique-Entries-Based-on-Multiple-Columns-in-Sharep. However, it is not working. I'm using SharePoint Server 2016 on premise.

I'm aware there's a built in function (enforce unique values). However, this does not work with multiple columns.

Is there a way to prevent duplicate entries in SharePoint?

Answer 1

Hi @Michele DuBose ,
You can refer to following code to prevent duplicate entries in a SharePoint list
168859-test.txt

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Answer 2

Hi @RaytheonXie_MSFT ,

I've used the example in this article: https://social.msdn.microsoft.com/Forums/office/en-US/bfd98455-0ece-4e53-838c-6558b825fddb/enforce-unique-values-for-3-columns-in-a-list-on-sharepoint-online?forum=sharepointdevelopment

It's working now.

Thanks.