Validation added to tables acts as a data layer to help block invalid data. Applying validation to table attributes ensures consistency across your application, as the same validation is applied anywhere the attribute is used.
Validation is automatically applied to data being entered via a form by checking the it against the properties of the backing attribute, such as the length of a string and the type of data expected.
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Further reading
Validation on forms allows bespoke validation to be applied to a form field or Table Attribute validation to be overridden.
