# Select

Displays a list of options for the user to pick from—triggered by a button.

## When to use

* Pick one value from a short, known list, such as a country, a status or a sort order.
* Prefer `RadioGroup` when there are only two or three options and all should stay visible.

## How it works

`Select` is composed of `SelectTrigger`, `SelectValue`, `SelectContent`, `SelectGroup`, `SelectLabel` and `SelectItem`. The list opens in a portal positioned next to the trigger and supports keyboard navigation and typeahead. With Base UI it builds on `@base-ui/react/select`; with Radix on the `Select` primitive from `radix-ui`.

## Example

### Base UI

```tsx
'use client'

import {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectLabel,
  SelectTrigger,
  SelectValue,
} from "@/shadcn/base/ui/select"

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" },
]

export default function SelectDemo() {
  return (
    <Select items={items}>
      <SelectTrigger className="w-full max-w-48">
        <SelectValue />
      </SelectTrigger>
      <SelectContent>
        <SelectGroup>
          <SelectLabel>Fruits</SelectLabel>
          {items.map((item) => (
            <SelectItem key={item.value} value={item.value}>
              {item.label}
            </SelectItem>
          ))}
        </SelectGroup>
      </SelectContent>
    </Select>
  )
}
```

```tsx [components/ui/select.tsx]
"use client"

import * as React from "react"
import { Select as SelectPrimitive } from "@base-ui/react/select"
import { cn } from "cn"
import { ChevronDownIcon, CheckIcon, ChevronUpIcon } from "lucide-react"

const Select = SelectPrimitive.Root

function SelectGroup({ className, ...props }: SelectPrimitive.Group.Props) {
  return (
    <SelectPrimitive.Group
      data-slot="select-group"
      className={cn("scroll-my-1 p-1", className)}
      {...props}
    />
  )
}

function SelectValue({ className, ...props }: SelectPrimitive.Value.Props) {
  return (
    <SelectPrimitive.Value
      data-slot="select-value"
      className={cn("flex flex-1 text-left", className)}
      {...props}
    />
  )
}

function SelectTrigger({
  className,
  size = "default",
  children,
  ...props
}: SelectPrimitive.Trigger.Props & {
  size?: "sm" | "default"
}) {
  return (
    <SelectPrimitive.Trigger
      data-slot="select-trigger"
      data-size={size}
      className={cn(
        "flex w-fit items-center justify-between gap-1.5 rounded-lg border border-input bg-transparent py-2 pr-2 pl-2.5 text-sm whitespace-nowrap transition-colors outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-placeholder:text-muted-foreground data-[size=default]:h-8 data-[size=sm]:h-7 data-[size=sm]:rounded-[min(var(--radius-md),10px)] *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-1.5 dark:bg-input/30 dark:hover:bg-input/50 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      {children}
      <SelectPrimitive.Icon
        render={
          <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
        }
      />
    </SelectPrimitive.Trigger>
  )
}

function SelectContent({
  className,
  children,
  side = "bottom",
  sideOffset = 4,
  align = "center",
  alignOffset = 0,
  alignItemWithTrigger = true,
  ...props
}: SelectPrimitive.Popup.Props &
  Pick<
    SelectPrimitive.Positioner.Props,
    "align" | "alignOffset" | "side" | "sideOffset" | "alignItemWithTrigger"
  >) {
  return (
    <SelectPrimitive.Portal>
      <SelectPrimitive.Positioner
        side={side}
        sideOffset={sideOffset}
        align={align}
        alignOffset={alignOffset}
        alignItemWithTrigger={alignItemWithTrigger}
        className="isolate z-50"
      >
        <SelectPrimitive.Popup
          data-slot="select-content"
          data-align-trigger={alignItemWithTrigger}
          className={cn("relative isolate z-50 max-h-(--available-height) w-(--anchor-width) min-w-36 origin-(--transform-origin) overflow-x-hidden overflow-y-auto rounded-lg bg-popover text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[align-trigger=true]:animate-none data-[side=bottom]:slide-in-from-top-2 data-[side=inline-end]:slide-in-from-left-2 data-[side=inline-start]:slide-in-from-right-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
          {...props}
        >
          <SelectScrollUpButton />
          <SelectPrimitive.List>{children}</SelectPrimitive.List>
          <SelectScrollDownButton />
        </SelectPrimitive.Popup>
      </SelectPrimitive.Positioner>
    </SelectPrimitive.Portal>
  )
}

function SelectLabel({
  className,
  ...props
}: SelectPrimitive.GroupLabel.Props) {
  return (
    <SelectPrimitive.GroupLabel
      data-slot="select-label"
      className={cn("px-1.5 py-1 text-xs text-muted-foreground", className)}
      {...props}
    />
  )
}

function SelectItem({
  className,
  children,
  ...props
}: SelectPrimitive.Item.Props) {
  return (
    <SelectPrimitive.Item
      data-slot="select-item"
      className={cn(
        "relative flex w-full cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
        className
      )}
      {...props}
    >
      <SelectPrimitive.ItemText className="flex flex-1 shrink-0 gap-2 whitespace-nowrap">
        {children}
      </SelectPrimitive.ItemText>
      <SelectPrimitive.ItemIndicator
        render={
          <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center" />
        }
      >
        <CheckIcon className="pointer-events-none" />
      </SelectPrimitive.ItemIndicator>
    </SelectPrimitive.Item>
  )
}

function SelectSeparator({
  className,
  ...props
}: SelectPrimitive.Separator.Props) {
  return (
    <SelectPrimitive.Separator
      data-slot="select-separator"
      className={cn("pointer-events-none -mx-1 my-1 h-px bg-border", className)}
      {...props}
    />
  )
}

function SelectScrollUpButton({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.ScrollUpArrow>) {
  return (
    <SelectPrimitive.ScrollUpArrow
      data-slot="select-scroll-up-button"
      className={cn(
        "top-0 z-10 flex w-full cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      <ChevronUpIcon
      />
    </SelectPrimitive.ScrollUpArrow>
  )
}

function SelectScrollDownButton({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.ScrollDownArrow>) {
  return (
    <SelectPrimitive.ScrollDownArrow
      data-slot="select-scroll-down-button"
      className={cn(
        "bottom-0 z-10 flex w-full cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      <ChevronDownIcon
      />
    </SelectPrimitive.ScrollDownArrow>
  )
}

export {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectLabel,
  SelectScrollDownButton,
  SelectScrollUpButton,
  SelectSeparator,
  SelectTrigger,
  SelectValue,
}
```

### Radix

```tsx
'use client'

import {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectLabel,
  SelectTrigger,
  SelectValue,
} from "@/shadcn/radix/ui/select"

export default function SelectDemo() {
  return (
    <Select>
      <SelectTrigger className="w-full max-w-48">
        <SelectValue placeholder="Select a fruit" />
      </SelectTrigger>
      <SelectContent>
        <SelectGroup>
          <SelectLabel>Fruits</SelectLabel>
          <SelectItem value="apple">Apple</SelectItem>
          <SelectItem value="banana">Banana</SelectItem>
          <SelectItem value="blueberry">Blueberry</SelectItem>
          <SelectItem value="grapes">Grapes</SelectItem>
          <SelectItem value="pineapple">Pineapple</SelectItem>
        </SelectGroup>
      </SelectContent>
    </Select>
  )
}
```

```tsx [components/ui/select.tsx]
"use client"

import * as React from "react"
import { cn } from "cn"
import { Select as SelectPrimitive } from "radix-ui"
import { ChevronDownIcon, CheckIcon, ChevronUpIcon } from "lucide-react"

function Select({
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Root>) {
  return <SelectPrimitive.Root data-slot="select" {...props} />
}

function SelectGroup({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Group>) {
  return (
    <SelectPrimitive.Group
      data-slot="select-group"
      className={cn("scroll-my-1 p-1", className)}
      {...props}
    />
  )
}

function SelectValue({
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Value>) {
  return <SelectPrimitive.Value data-slot="select-value" {...props} />
}

function SelectTrigger({
  className,
  size = "default",
  children,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
  size?: "sm" | "default"
}) {
  return (
    <SelectPrimitive.Trigger
      data-slot="select-trigger"
      data-size={size}
      className={cn(
        "flex w-fit items-center justify-between gap-1.5 rounded-lg border border-input bg-transparent py-2 pr-2 pl-2.5 text-sm whitespace-nowrap transition-colors outline-none select-none focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 data-placeholder:text-muted-foreground data-[size=default]:h-8 data-[size=sm]:h-7 data-[size=sm]:rounded-[min(var(--radius-md),10px)] *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-1.5 dark:bg-input/30 dark:hover:bg-input/50 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      {children}
      <SelectPrimitive.Icon asChild>
        <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
      </SelectPrimitive.Icon>
    </SelectPrimitive.Trigger>
  )
}

function SelectContent({
  className,
  children,
  position = "item-aligned",
  align = "center",
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Content>) {
  return (
    <SelectPrimitive.Portal>
      <SelectPrimitive.Content
        data-slot="select-content"
        data-align-trigger={position === "item-aligned"}
        className={cn("relative z-50 max-h-(--radix-select-content-available-height) min-w-36 origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-lg bg-popover text-popover-foreground shadow-md ring-1 ring-foreground/10 duration-100 data-[align-trigger=true]:animate-none data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", position ==="popper"&&"data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1", className )}
        position={position}
        align={align}
        {...props}
      >
        <SelectScrollUpButton />
        <SelectPrimitive.Viewport
          data-position={position}
          className={cn(
            "data-[position=popper]:h-(--radix-select-trigger-height) data-[position=popper]:w-full data-[position=popper]:min-w-(--radix-select-trigger-width)",
            position === "popper" && ""
          )}
        >
          {children}
        </SelectPrimitive.Viewport>
        <SelectScrollDownButton />
      </SelectPrimitive.Content>
    </SelectPrimitive.Portal>
  )
}

function SelectLabel({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Label>) {
  return (
    <SelectPrimitive.Label
      data-slot="select-label"
      className={cn("px-1.5 py-1 text-xs text-muted-foreground", className)}
      {...props}
    />
  )
}

function SelectItem({
  className,
  children,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Item>) {
  return (
    <SelectPrimitive.Item
      data-slot="select-item"
      className={cn(
        "relative flex w-full cursor-default items-center gap-1.5 rounded-md py-1 pr-8 pl-1.5 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
        className
      )}
      {...props}
    >
      <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center">
        <SelectPrimitive.ItemIndicator>
          <CheckIcon className="pointer-events-none" />
        </SelectPrimitive.ItemIndicator>
      </span>
      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
    </SelectPrimitive.Item>
  )
}

function SelectSeparator({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.Separator>) {
  return (
    <SelectPrimitive.Separator
      data-slot="select-separator"
      className={cn("pointer-events-none -mx-1 my-1 h-px bg-border", className)}
      {...props}
    />
  )
}

function SelectScrollUpButton({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
  return (
    <SelectPrimitive.ScrollUpButton
      data-slot="select-scroll-up-button"
      className={cn(
        "z-10 flex cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      <ChevronUpIcon
      />
    </SelectPrimitive.ScrollUpButton>
  )
}

function SelectScrollDownButton({
  className,
  ...props
}: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
  return (
    <SelectPrimitive.ScrollDownButton
      data-slot="select-scroll-down-button"
      className={cn(
        "z-10 flex cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
        className
      )}
      {...props}
    >
      <ChevronDownIcon
      />
    </SelectPrimitive.ScrollDownButton>
  )
}

export {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectLabel,
  SelectScrollDownButton,
  SelectScrollUpButton,
  SelectSeparator,
  SelectTrigger,
  SelectValue,
}
```

## Installation

```bash
npx shadcn@latest add select
```

## Reference

Official page: https://ui.shadcn.com/docs/components/select