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Radios
<gcds-radios>

Also called: radio button, radio.

Radios provide a set of options for a single response.

  • GitHub
  • Figma

Radios component preview

On this page

Coding and accessibility for radios

Apply required attributes

Always use the following required attributes with gcds-radios:

  • name
  • legend
  • options

Use the options attribute

  • The options attribute uses an array of objects to render each radio button.
  • Within the options attribute of each radio button, always use the object's required properties:
    • id  
    • label
  • The rest of the properties are optional.

Example:

{
  'id'!: '',
  'label'!: '',
  'value'!: '',
  'checked'?: '',
  'hint'?: '',
}

Use the value attribute

The value attribute provides a quick reference of the value selected inside the gcds-radios component.

Add hint text

Use the hint attribute to add hint text.

Add validation and error messages

  • Use the required attribute to activate the built-in error messages and validation for radios.
  • Fields with specific input requirements will validate if the entry is invalid, even if it is not required.
  • For optional fields that need validation, like email address formats, add custom validation with a custom error message.

Examples Explore the different ways you can configure the component. Each example shows a working implementation and ready-to-copy code.

In this section

Essential attributes These attributes are needed for the component to function correctly.

legend

The legend attribute defines the legend for a group of radios.

<gcds-radios legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

name

The name attribute identifies the radios component within a form. It is used to reference the component after a form is submitted.

<gcds-radios legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

options

The options attribute defines the radios to render by taking an array of objects, one per radio button.

<gcds-radios legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

Optional attributes These attributes allow you to customize or extend the component’s behaviour and presentation.

autofocus

The autofocus attribute controls whether the first radio button will be focused automatically when the page loads. By default, it is set to false. When set to true, the radio button is focused on render.

<gcds-radios autofocus legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

disabled

The disabled attribute controls whether the radios are disabled or not. By default, it is set to false.

<gcds-radios disabled legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

error-message

The error-message attribute defines the error message to display for invalid radios.

<gcds-radios error-message="Error message" legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

form

The form attribute specifies the ID of the form that the radios belong to.

<gcds-radios form="form-id" legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

hide-legend

The hide-legend attribute controls whether the legend is hidden or not.

<gcds-radios hide-legend legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

hint

The hint attribute defines the hint text displayed under the label or legend.

<gcds-radios hint="Hint / Example message." legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

required

The required attribute controls whether the radio fieldset is required or not. When set to true, it adds “required” after the legend, and activates the required validator.

<gcds-radios required legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

validate-on

The validate-on attribute defines the validation event for the radios.

<gcds-radios validate-on="other" required legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

value

The value attribute contains the value of the currently selected radio button. It updates when the selection changes.

<gcds-radios value="radio1" legend="Legend" name="radio" options='[{"id":"form-radio-1","label":"Label 1","hint":"Description or example to make the option clearer", "value": "radio1"},{"id":"form-radio-r","label":"Label 2","hint":"Description or example to make the option clearer", "value": "radio2"}]'>
</gcds-radio>

Code builder

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  1. Explore by choosing different code values to generate the instance you want.

  2. Get the code and pull it into your environment.

  3. Add any copy you need to the component (like text for a label).

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2026-06-10