HeroUI Error Message

Forms 1

About

HeroUI v3 ErrorMessage — form validation message that appears when a field group is invalid, shown under a TagGroup with selection validation.

Built with React and Tailwind. Copy the prompt and paste it into Claude Code, Cursor or Lovable: your agent adds HeroUI Error Message to your project and fits it to your theme.

Code

How HeroUI Error Message is used: the demo's code. The component's own source comes with a free account.

Usage.tsx

"use client"

import type { Key } from "@heroui/react"

import { ErrorMessage } from "@/components/ui/heroui-error-message"
import { Description, Label, Tag, TagGroup } from "@heroui/react"
import { useMemo, useState } from "react"

export default function ErrorMessageBasic() {
  const [selected, setSelected] = useState<Iterable<Key>>(new Set())
  const isInvalid = useMemo(() => Array.from(selected).length === 0, [selected])

  return (
    <TagGroup
      selectedKeys={selected}
      selectionMode="multiple"
      onSelectionChange={(keys) => setSelected(keys)}
    >
      <Label>Required Categories</Label>
      <TagGroup.List>
        <Tag id="news">News</Tag>
        <Tag id="travel">Travel</Tag>
        <Tag id="gaming">Gaming</Tag>
        <Tag id="shopping">Shopping</Tag>
      </TagGroup.List>
      <Description>Select at least one category</Description>
      <ErrorMessage>{!!isInvalid && <>Please select at least one category</>}</ErrorMessage>
    </TagGroup>
  )
}