TextInput with no database column?

I am trying to add a TextInput column to a table that allows users to type in numbers. I don't want anything to be changed in the database when they type something in, but I would like to be able to access the value when clicking an action button.

Is there any good way to do this? I considered just trying to make a custom view column, but I wasn't sure how I would access the value from the action button in that case.
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