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Magento 2

Magento 2 – How to validate at least one checkbox in custom module form?

Today I will discuses, How to validate at least one checkbox in custom module form? Open your module form .phtml file and add the validation component on form tag, as a attribute like data-mage-init.

How to validate at least one checkbox in custom module form?

Add attribute on the form tag: data-mage-init='{“validation”:{}}’

Add some validation rules to your custom module form checkbox fields like data-validate=”{required:true, ‘validate-one-required-by-name’:true}”, Please see example checkbox form html code with validate-one-required-by-name below.

After form validate screen.

List of Magento 2 form validation rules

List of some Magento 2 validation rules you can use and their error message. You can find all methods yourself by looking in lib/web/prototype/validation.js on line 415

List of Magento 2 supported all form validation rules, jQuery validation rules

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