# Textarea

> Multi-line textarea with a description and length-constrained Zod rule.

A shadcn/ui block from the [@flx](https://ui.flexnative.com) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/flx/tsf-fields-03).

- Page, with a live preview: https://shadcn.exchange/r/flx/tsf-fields-03
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/flx/tsf-fields-03-light-7d5d007f9cd54a84.png
- Registry item: https://ui.flexnative.com/r/tsf-fields-03.json
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://ui.flexnative.com/r/tsf-fields-03.json
```

Run it in a project that has shadcn/ui set up. It adds the files below and installs what they depend on.

## Dependencies

- npm packages: `@tanstack/react-form`, `sonner`, `zod`
- Registry items: `field`, `textarea`, `button`

## Files

### `registry/forms/tanstack-form/fields/tsf-fields-03.tsx`

```tsx
'use client'

import { useForm } from '@tanstack/react-form'
import { toast } from 'sonner'
import * as z from 'zod'

import { Button } from '@/components/ui/button'
import {
  Field,
  FieldDescription,
  FieldError,
  FieldGroup,
  FieldLabel,
} from '@/components/ui/field'
import { Textarea } from '@/components/ui/textarea'

const formSchema = z.object({
  bio: z
    .string()
    .min(10, 'Tell us at least 10 characters.')
    .max(160, 'Keep it under 160 characters.'),
})

export function TsfFields03() {
  const form = useForm({
    defaultValues: { bio: '' },
    validators: { onSubmit: formSchema },
    onSubmit: async ({ value }) => {
      toast.success('Bio updated', { description: value.bio })
    },
  })

  return (
    <form
      onSubmit={(e) => {
        e.preventDefault()
        form.handleSubmit()
      }}
      className="flex w-full max-w-sm flex-col gap-6"
    >
      <FieldGroup>
        <form.Field name="bio">
          {(field) => {
            const isInvalid =
              field.state.meta.isTouched && !field.state.meta.isValid
            return (
              <Field data-invalid={isInvalid}>
                <FieldLabel htmlFor={field.name}>Bio</FieldLabel>
                <Textarea
                  id={field.name}
                  name={field.name}
                  rows={4}
                  placeholder="A short description about yourself."
                  aria-invalid={isInvalid}
                  value={field.state.value}
                  onBlur={field.handleBlur}
                  onChange={(e) => field.handleChange(e.target.value)}
                />
                <FieldDescription>
                  Shown on your public profile. Max 160 characters.
                </FieldDescription>
                {isInvalid && <FieldError errors={field.state.meta.errors} />}
              </Field>
            )
          }}
        </form.Field>
      </FieldGroup>
      <Button type="submit" size="sm">
        Save
      </Button>
    </form>
  )
}
```