FormField

A wrapper for form elements that provides validation and error handling.

Usage

Wrap any form component with a FormField. Used in a Form, it provides validation and error handling.

Label

Use the label prop to set the label for the form control.

label

<template>
  <UFormField label="Email">
    <UInput placeholder="Enter your email" />
  </UFormField>
</template>

The label for attribute and the form control are associated with a unique id if not provided.

When using the required prop, an asterisk is added next to the label.

required

<template>
  <UFormField label="Email" required>
    <UInput placeholder="Enter your email" />
  </UFormField>
</template>

Description

Use the description prop to provide additional information below the label.

description

We'll never share your email with anyone else.

<template>
  <UFormField label="Email" description="We'll never share your email with anyone else.">
    <UInput placeholder="Enter your email" class="w-full" />
  </UFormField>
</template>

Hint

Use the hint prop to display a hint message next to the label.

hint

EmailOptional

<template>
  <UFormField label="Email" hint="Optional">
    <UInput placeholder="Enter your email" />
  </UFormField>
</template>

Help

Use the help prop to display a help message below the form control.

help

Please enter a valid email address.

<template>
  <UFormField label="Email" help="Please enter a valid email address.">
    <UInput placeholder="Enter your email" class="w-full" />
  </UFormField>
</template>

Error

Use the error prop to display an error message below the form control. When used together with the help prop, the error prop takes precedence.

When used inside a Form, this is automatically set when a validation error occurs.

error

Please enter a valid email address.

<template>
  <UFormField label="Email" error="Please enter a valid email address.">
    <UInput placeholder="Enter your email" class="w-full" />
  </UFormField>
</template>

This sets the color to error on the form control. You can change it globally in your app.config.ts.

Use the error-pattern prop to match form errors with a regular expression. This is especially relevant for components with array values such as InputTags, where errors include array indices in their name (e.g. tags.0).

See an example of using error-pattern within a Form.

Size

Use the size prop to change the size of the FormField, the size is proxied to the form control.

size

EmailOptional

We'll never share your email with anyone else.

Please enter a valid email address.

<template>
  <UFormField
    label="Email"
    description="We'll never share your email with anyone else."
    hint="Optional"
    help="Please enter a valid email address."
    size="xl"
  >
    <UInput placeholder="Enter your email" class="w-full" />
  </UFormField>
</template>

Orientation 4.3+

Use the orientation prop to change the layout of the FormField. Defaults to vertical.

orientation

help

Please enter a valid email address.

<template>
  <UFormField
    orientation="horizontal"
    label="Email"
    help="Please enter a valid email address."
    class="w-72"
  >
    <UInput placeholder="Enter your email" class="w-full" />
  </UFormField>
</template>

API

Props

Prop	Default	Type
`as`	`'div'`	`any` The element or component this component should render as.
`name`		`string` The name of the FormField. Also used to match form errors.
`errorPattern`		`RegExp` A regular expression to match form error names. Useful for components with array values such as InputTags, where errors include array indices in their name (e.g. `tags.0`).
`label`		`string`
`description`		`string`
`help`		`string`
`error`	`undefined`	`string \| false \| true`
`hint`		`string`
`size`	`'md'`	`"md" \| "xs" \| "sm" \| "lg" \| "xl"`
`required`		`boolean`
`eagerValidation`		`boolean` If true, validation on input will be active immediately instead of waiting for a blur event.
`validateOnInputDelay`	`300`	`number` Delay in milliseconds before validating the form on input events.
`orientation`	`'vertical'`	`"vertical" \| "horizontal"` The orientation of the form field.
`ui`		`{ root?: ClassNameValue; wrapper?: ClassNameValue; labelWrapper?: ClassNameValue; label?: ClassNameValue; container?: ClassNameValue; description?: ClassNameValue; error?: ClassNameValue; hint?: ClassNameValue; help?: ClassNameValue; }`

Slots

Slot	Type
`label`	`{ label: string \| undefined; }`
`hint`	`{ hint: string \| undefined; }`
`description`	`{ description: string \| undefined; }`
`help`	`{ help: string \| undefined; }`
`error`	`{ error: string \| true \| undefined; }`
`default`	`{ error: string \| true \| undefined; }`

Theme

app.config.ts

export default defineAppConfig({
  ui: {
    formField: {
      slots: {
        root: '',
        wrapper: '',
        labelWrapper: 'flex content-center items-center justify-between gap-1',
        label: 'block font-medium text-default',
        container: 'relative',
        description: 'text-muted',
        error: 'mt-2 text-error',
        hint: 'text-muted',
        help: 'mt-2 text-muted'
      },
      variants: {
        size: {
          xs: {
            root: 'text-xs'
          },
          sm: {
            root: 'text-xs'
          },
          md: {
            root: 'text-sm'
          },
          lg: {
            root: 'text-sm'
          },
          xl: {
            root: 'text-base'
          }
        },
        required: {
          true: {
            label: "after:content-['*'] after:ms-0.5 after:text-error"
          }
        },
        orientation: {
          vertical: {
            container: 'mt-1'
          },
          horizontal: {
            root: 'flex justify-between place-items-baseline gap-2'
          }
        }
      },
      defaultVariants: {
        size: 'md'
      }
    }
  }
})

vite.config.ts

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import ui from '@nuxt/ui/vite'

export default defineConfig({
  plugins: [
    vue(),
    ui({
      ui: {
        formField: {
          slots: {
            root: '',
            wrapper: '',
            labelWrapper: 'flex content-center items-center justify-between gap-1',
            label: 'block font-medium text-default',
            container: 'relative',
            description: 'text-muted',
            error: 'mt-2 text-error',
            hint: 'text-muted',
            help: 'mt-2 text-muted'
          },
          variants: {
            size: {
              xs: {
                root: 'text-xs'
              },
              sm: {
                root: 'text-xs'
              },
              md: {
                root: 'text-sm'
              },
              lg: {
                root: 'text-sm'
              },
              xl: {
                root: 'text-base'
              }
            },
            required: {
              true: {
                label: "after:content-['*'] after:ms-0.5 after:text-error"
              }
            },
            orientation: {
              vertical: {
                container: 'mt-1'
              },
              horizontal: {
                root: 'flex justify-between place-items-baseline gap-2'
              }
            }
          },
          defaultVariants: {
            size: 'md'
          }
        }
      }
    })
  ]
})

Changelog

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Form

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