shadcn-ui/apps/v4/examples/base/select-invalid.tsx

import { Field, FieldError, FieldLabel } from "@/examples/base/ui/field"
import {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/examples/base/ui/select"

export function SelectInvalid() {
  const items = [
    { label: "Select a fruit", value: null },
    { label: "Apple", value: "apple" },
    { label: "Banana", value: "banana" },
    { label: "Blueberry", value: "blueberry" },
    { label: "Grapes", value: "grapes" },
    { label: "Pineapple", value: "pineapple" },
  ]
  return (
    <div className="flex flex-col gap-4">
      <Select items={items}>
        <SelectTrigger aria-invalid="true">
          <SelectValue />
        </SelectTrigger>
        <SelectContent>
          <SelectGroup>
            {items.map((item) => (
              <SelectItem key={item.value} value={item.value}>
                {item.label}
              </SelectItem>
            ))}
          </SelectGroup>
        </SelectContent>
      </Select>
      <Field data-invalid>
        <FieldLabel htmlFor="select-fruit-invalid">Favorite Fruit</FieldLabel>
        <Select items={items}>
          <SelectTrigger id="select-fruit-invalid" aria-invalid>
            <SelectValue />
          </SelectTrigger>
          <SelectContent>
            <SelectGroup>
              {items.map((item) => (
                <SelectItem key={item.value} value={item.value}>
                  {item.label}
                </SelectItem>
              ))}
            </SelectGroup>
          </SelectContent>
        </Select>
        <FieldError errors={[{ message: "Please select a valid fruit." }]} />
      </Field>
    </div>
  )
}