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In a List, I've got several number columns that users enter a value in for # of tickets.

Ex:
Event 1 - [ ] tickets
Event 2 - [ ] tickets
Event 3 - [ ] tickets

Is it possible to validate the sum of the three ticket values? For instance, let's say I want to cap the number of tickets at 8, how can I validate to check the sum of the three columns and compare that to 8?

Many thanks!

  • Use JavaScript to validate the fields – Keerthi Nov 17 '15 at 20:20
5

Go to List tab>List Settings>Validation Settings.

Enter =(sum([Event 1],[Event 2],[Event 3]))<=8 in the Formula box. Enter some error text in the User Message box.

Validation Settings

Now if a user tries to save, and the total tickets is more than 8, it will show the error message, and not submit the form until it is corrected.

Error Message

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