Validate entire column with condition
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28-09-2020 - |
Question
I have a list that has a column which is an integer. Is it possible when selecting a number to validate if this number has already been chosen in the list.
For example
List
Title Order
Item1 1
Item2 2
I create a new list item, select '2' for the Order item, and SharePoint kicks back saying 'Please select an Order number which does not exist'
Solution
You can in the column settings on the list mark the field with "Enforce unique values", that way each entry must be unique!
More, and the above image: http://adicodes.com/column-validations-and-list-validations-in-sharepoint-2010/
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