# Select

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

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<ComponentPreview name="select-demo" />

## Installation [#installation]

<Tabs defaultValue="cli">
  <TabsList>
    <TabsTrigger value="cli">
      Command
    </TabsTrigger>

    <TabsTrigger value="manual">
      Manual
    </TabsTrigger>
  </TabsList>

  <TabsContent value="cli">
    ```bash
    npx shadcn@latest add https://shadcn-cssinjs.com/r/select.json
    ```
  </TabsContent>

  <TabsContent value="manual">
    <Steps>
      <Step>
        Install the following dependencies:
      </Step>

      ```bash
      pnpm add @base-ui/react @stylexjs/stylex
      ```

      <Step>
        Make sure [StyleX is configured](/docs/installation) and the design tokens are
        installed.
      </Step>

      <Step>
        Copy and paste the following code into your project.
      </Step>

      <ComponentSource name="select" title="select.tsx" />

      <Step>
        Update the import paths to match your project setup.
      </Step>
    </Steps>
  </TabsContent>
</Tabs>

## Usage [#usage]

```tsx showLineNumbers
import {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
```

```tsx showLineNumbers
const items = [
  { label: "Light", value: "light" },
  { label: "Dark", value: "dark" },
  { label: "System", value: "system" },
]

<Select items={items}>
  <SelectTrigger className="w-[180px]">
    <SelectValue placeholder="Theme" />
  </SelectTrigger>
  <SelectContent>
    <SelectGroup>
      {items.map((item) => (
        <SelectItem key={item.value} value={item.value}>
          {item.label}
        </SelectItem>
      ))}
    </SelectGroup>
  </SelectContent>
</Select>
```

## Composition [#composition]

Use the following composition to build a `Select`:

```text
Select
├── SelectTrigger
│   └── SelectValue
└── SelectContent
    ├── SelectGroup
    │   ├── SelectLabel
    │   ├── SelectItem
    │   └── SelectItem
    ├── SelectSeparator
    └── SelectGroup
        ├── SelectLabel
        ├── SelectItem
        └── SelectItem
```

## Align Item With Trigger [#align-item-with-trigger]

Use `alignItemWithTrigger` on `SelectContent` to control whether the selected item aligns with the trigger. When `true` (default), the popup positions so the selected item appears over the trigger. When `false`, the popup aligns to the trigger edge.

<ComponentPreview name="select-align-item" />

## Groups [#groups]

Use `SelectGroup`, `SelectLabel`, and `SelectSeparator` to organize items.

<ComponentPreview name="select-groups" />

## Scrollable [#scrollable]

A select with many items that scrolls.

<ComponentPreview name="select-scrollable" />

## Disabled [#disabled]

<ComponentPreview name="select-disabled" />

## Invalid [#invalid]

Add the `data-invalid` attribute to the `Field` component and the `aria-invalid` attribute to the `SelectTrigger` component to show an error state.

```tsx showLineNumbers /data-invalid/ /aria-invalid/
<Field data-invalid>
  <FieldLabel>Fruit</FieldLabel>
  <SelectTrigger aria-invalid>
    <SelectValue />
  </SelectTrigger>
</Field>
```

<ComponentPreview name="select-invalid" />

## RTL [#rtl]

To enable RTL support in shadcn/ui, see the [RTL configuration guide](/docs/rtl).

<ComponentPreview name="select-rtl" direction="rtl" />

## API Reference [#api-reference]

See the [Base UI Select](https://base-ui.com/react/components/select#api-reference) documentation.