FormField

FormField is a wrapper component that provides labels, helper text, error messages, and accessibility features for form controls.

Import

import { FormField } from "@tosui/react";

Basic Usage

Code

<FormField label="Email">
  <Input type="email" placeholder="you@example.com" />
</FormField>

Preview

Email

Helper Text

Code

<FormField label="Password" helperText="Must be at least 8 characters">
  <Input type="password" placeholder="Enter password" />
</FormField>

Preview

PasswordMust be at least 8 characters

Required Field

Code

<FormField label="Username" isRequired>
  <Input placeholder="Enter username" />
</FormField>

Preview

Username*

Invalid State

When isInvalid is true, the error message replaces the helper text.

Code

<FormField
  label="Email"
  errorMessage="Please enter a valid email address"
  isInvalid
  isRequired
>
  <Input type="email" placeholder="you@example.com" />
</FormField>

Preview

Email*Please enter a valid email address

Disabled State

Code

<FormField label="Disabled Field" disabled>
  <Input placeholder="Cannot edit" />
</FormField>

Preview

Disabled Field

With Different Controls

FormField works with any form control.

Code

<VStack gap={6}>
  <FormField label="Country" isRequired>
    <Select>
      <option value="">Select a country</option>
      <option value="us">United States</option>
      <option value="uk">United Kingdom</option>
    </Select>
  </FormField>

  <FormField label="Bio" helperText="Tell us about yourself">
    <Textarea rows={4} placeholder="Your bio..." />
  </FormField>

  <FormField
    label="Terms"
    errorMessage="You must accept the terms"
    isInvalid
  >
    <Checkbox label="I accept the terms and conditions" />
  </FormField>
</VStack>

Preview

Country*Select a countryUnited StatesUnited Kingdom

BioTell us about yourself

TermsI accept the terms and conditionsYou must accept the terms

Complete Form Example

<VStack gap={4}>
  <FormField label="Full Name" isRequired>
    <Input placeholder="John Doe" />
  </FormField>

  <FormField
    label="Email"
    helperText="We'll never share your email"
    isRequired
  >
    <Input type="email" placeholder="you@example.com" />
  </FormField>

  <FormField label="Role">
    <Select>
      <option value="">Select a role</option>
      <option value="developer">Developer</option>
      <option value="designer">Designer</option>
      <option value="manager">Manager</option>
    </Select>
  </FormField>

  <FormField label="Message" helperText="Optional">
    <Textarea placeholder="Your message..." />
  </FormField>

  <Button type="submit" w="100%">Submit</Button>
</VStack>

Props Reference

Prop	Type	Default	Description
label	string	-	Label text (required)
helperText	string	-	Helper text below the control
errorMessage	string	-	Error message (shown when isInvalid)
isRequired	boolean	false	Show required asterisk
isInvalid	boolean	false	Show invalid state
disabled	boolean	false	Disable the control
id	string	auto-generated	Custom ID for the field
children	ReactNode	-	The form control

Accessibility

FormField provides:

• Proper <label> element linked to the control via htmlFor
• aria-describedby linking the control to helper/error text
• aria-invalid attribute when in error state
• Auto-generated unique IDs when not provided

State Propagation

FormField automatically passes these props to child controls:

• id - for label association
• isInvalid - for visual error state
• disabled - for disabled state
• aria-describedby - for accessibility
• aria-invalid - for accessibility

TypeScript

import { FormField, type FormFieldProps } from "@tosui/react";