data/primitives/docs/components/select.mdx
<Highlights features={[ "Can be controlled or uncontrolled.", "Offers 2 positioning modes.", "Supports items, labels, groups of items.", "Focus is fully managed.", "Full keyboard navigation.", "Supports custom placeholder.", "Typeahead support.", "Supports Right to Left direction.", ]} />
Install the component from your command line.
npm install @radix-ui/react-select
Import all parts and piece them together.
import { Select } from "radix-ui";
export default () => (
<Select.Root>
<Select.Trigger>
<Select.Value />
<Select.Icon />
</Select.Trigger>
<Select.Portal>
<Select.Content>
<Select.ScrollUpButton />
<Select.Viewport>
<Select.Item>
<Select.ItemText />
<Select.ItemIndicator />
</Select.Item>
<Select.Group>
<Select.Label />
<Select.Item>
<Select.ItemText />
<Select.ItemIndicator />
</Select.Item>
</Select.Group>
<Select.Separator />
</Select.Viewport>
<Select.ScrollDownButton />
<Select.Arrow />
</Select.Content>
</Select.Portal>
</Select.Root>
);
Contains all the parts of a select.
<PropsTable data={[ { name: "defaultValue", required: false, type: "string", description: "The value of the select when initially rendered. Use when you do not need to control the state of the select.", }, { name: "value", required: false, type: "string", description: ( <span> The controlled value of the select. Should be used in conjunction with{" "} <Code>onValueChange</Code>. </span> ), }, { name: "onValueChange", required: false, type: "(value: string) => void", typeSimple: "function", description: "Event handler called when the value changes.", }, { name: "defaultOpen", type: "boolean", description: "The open state of the select when it is initially rendered. Use when you do not need to control its open state.", }, { name: "open", type: "boolean", description: ( <span> The controlled open state of the select. Must be used in conjunction with <Code>onOpenChange</Code>. </span> ), }, { name: "onOpenChange", type: "(open: boolean) => void", typeSimple: "function", description: ( <span> Event handler called when the open state of the select changes. </span> ), }, { name: "dir", required: false, type: '"ltr" | "rtl"', typeSimple: "enum", description: ( <span> The reading direction of the select when applicable. If omitted, inherits globally from <Code>DirectionProvider</Code> or assumes LTR (left-to-right) reading mode. </span> ), }, { name: "name", type: "string", description: "The name of the select. Submitted with its owning form as part of a name/value pair.", }, { name: "disabled", type: "boolean", description: ( <span> When <Code>true</Code>, prevents the user from interacting with select. </span> ), }, { name: "required", type: "boolean", description: ( <span> When <Code>true</Code>, indicates that the user must select a value before the owning form can be submitted. </span> ), }, ]} />
The button that toggles the select. The Select.Content will position itself by aligning over the trigger.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
<DataAttributesTable data={[ { attribute: "[data-state]", values: ["open", "closed"], }, { attribute: "[data-disabled]", values: "Present when disabled", }, { attribute: "[data-placeholder]", values: "Present when has placeholder", }, ]} />
The part that reflects the selected value. By default the selected item's text will be rendered. if you require more control, you can instead control the select and pass your own children. It should not be styled to ensure correct positioning. An optional placeholder prop is also available for when the select has no value.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
{
name: "placeholder",
required: false,
type: "ReactNode",
description: (
<>
The content that will be rendered inside the <Code>Select.Value</Code>{" "}
when no <Code>value</Code> or <Code>defaultValue</Code> is set.
</>
),
},
]}
/>
A small icon often displayed next to the value as a visual affordance for the fact it can be open. By default renders ▼ but you can use your own icon via asChild or use children.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
When used, portals the content part into the body.
<PropsTable data={[ { name: "container", type: "HTMLElement", default: "document.body", description: "Specify a container element to portal the content into.", }, ]} />
The component that pops out when the select is open.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
{
name: "onCloseAutoFocus",
type: "(event: Event) => void",
typeSimple: "function",
description: (
<span>
Event handler called when focus moves to the trigger after closing. It
can be prevented by calling <Code>event.preventDefault</Code>.
</span>
),
},
{
name: "onEscapeKeyDown",
type: "(event: KeyboardEvent) => void",
typeSimple: "function",
description: (
<span>
Event handler called when the escape key is down. It can be prevented
by calling <Code>event.preventDefault</Code>.
</span>
),
},
{
name: "onPointerDownOutside",
type: "(event: PointerDownOutsideEvent) => void",
typeSimple: "function",
description: (
<span>
Event handler called when a pointer event occurs outside the bounds of
the component. It can be prevented by calling{" "}
<Code>event.preventDefault</Code>.
</span>
),
},
{
name: "position",
type: '"item-aligned" | "popper"',
typeSimple: "enum",
default: '"item-aligned"',
description: (
<span>
The positioning mode to use, <Code>item-aligned</Code> is the default
and behaves similarly to a native MacOS menu by positioning content
relative to the active item. <Code>popper</Code> positions content in
the same way as our other primitives, for example <Code>Popover</Code>{" "}
or <Code>DropdownMenu</Code>.
</span>
),
},
{
name: "side",
type: '"top" | "right" | "bottom" | "left"',
typeSimple: "enum",
default: '"bottom"',
description: (
<span>
The preferred side of the anchor to render against when open. Will be
reversed when collisions occur and <Code>avoidCollisions</Code> is
enabled. Only available when <Code>position</Code> is set to{" "}
<Code>popper</Code>.
</span>
),
},
{
name: "sideOffset",
type: "number",
default: "0",
description: (
<span>
The distance in pixels from the anchor. Only available when{" "}
<Code>position</Code> is set to <Code>popper</Code>.
</span>
),
},
{
name: "align",
type: '"start" | "center" | "end"',
typeSimple: "enum",
default: '"start"',
description: (
<span>
The preferred alignment against the anchor. May change when collisions
occur. Only available when <Code>position</Code> is set to{" "}
<Code>popper</Code>.
</span>
),
},
{
name: "alignOffset",
type: "number",
default: "0",
description: (
<span>
An offset in pixels from the <Code>"start"</Code> or{" "}
<Code>"end"</Code> alignment options. Only available when{" "}
<Code>position</Code> is set to <Code>popper</Code>.
</span>
),
},
{
name: "avoidCollisions",
type: "boolean",
default: "true",
description: (
<span>
When <Code>true</Code>, overrides the <Code>side</Code> and
<Code>align</Code> preferences to prevent collisions with boundary
edges. Only available when <Code>position</Code> is set to{" "}
<Code>popper</Code>.
</span>
),
},
{
name: "collisionBoundary",
type: "Element | null | Array<Element | null>",
typeSimple: "Boundary",
default: "[]",
description: (
<span>
The element used as the collision boundary. By default this is the
viewport, though you can provide additional element(s) to be included
in this check. Only available when <Code>position</Code> is set to{" "}
<Code>popper</Code>.
</span>
),
},
{
name: "collisionPadding",
type: "number | Partial<Record<Side, number>>",
typeSimple: "number | Padding",
default: "10",
description: (
<span>
The distance in pixels from the boundary edges where collision
detection should occur. Accepts a number (same for all sides), or a
partial padding object, for example:{" "}
<Code>{`{ top: 20, left: 20 }`}</Code>. Only available when{" "}
<Code>position</Code> is set to <Code>popper</Code>.
</span>
),
},
{
name: "arrowPadding",
type: "number",
default: "0",
description: (
<span>
The padding between the arrow and the edges of the content. If your
content has <Code>border-radius</Code>, this will prevent it from
overflowing the corners. Only available when <Code>position</Code> is
set to <Code>popper</Code>.
</span>
),
},
{
name: "sticky",
type: '"partial" | "always"',
typeSimple: "enum",
default: '"partial"',
description: (
<span>
The sticky behavior on the align axis. <Code>"partial"</Code> will
keep the content in the boundary as long as the trigger is at least
partially in the boundary whilst <Code>"always"</Code> will keep the
content in the boundary regardless. Only available when{" "}
<Code>position</Code> is set to <Code>popper</Code>.
</span>
),
},
{
name: "hideWhenDetached",
type: "boolean",
default: "false",
description: (
<span>
Whether to hide the content when the trigger becomes fully occluded.
Only available when <Code>position</Code> is set to{" "}
<Code>popper</Code>.
</span>
),
},
]}
/>
<DataAttributesTable data={[ { attribute: "[data-state]", values: ["open", "closed"], }, { attribute: "[data-side]", values: ["left", "right", "bottom", "top"], }, { attribute: "[data-align]", values: ["start", "end", "center"], }, ]} />
<CssVariablesTable data={[ { cssVariable: "--radix-select-content-transform-origin", description: ( <> The <Code>transform-origin</Code> computed from the content and arrow positions/offsets. Only present when <Code>position="popper"</Code>. </> ), }, { cssVariable: "--radix-select-content-available-width", description: ( <> The remaining width between the trigger and the boundary edge. Only present when <Code>position="popper"</Code>. </> ), }, { cssVariable: "--radix-select-content-available-height", description: ( <> The remaining height between the trigger and the boundary edge. Only present when <Code>position="popper"</Code>. </> ), }, { cssVariable: "--radix-select-trigger-width", description: ( <> The width of the trigger. Only present when{" "} <Code>position="popper"</Code>. </> ), }, { cssVariable: "--radix-select-trigger-height", description: ( <> The height of the trigger. Only present when{" "} <Code>position="popper"</Code>. </> ), }, ]} />
The scrolling viewport that contains all of the items.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
The component that contains the select items.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
{
name: "value",
required: true,
type: "string",
description: (
<span>
The value given as data when submitted with a <Code>name</Code>.
</span>
),
},
{
name: "disabled",
type: "boolean",
description: (
<span>
When <Code>true</Code>, prevents the user from interacting with the
item.
</span>
),
},
{
name: "textValue",
type: "string",
description: (
<span>
Optional text used for typeahead purposes. By default the typeahead
behavior will use the <Code>.textContent</Code> of the{" "}
<Code>Select.ItemText</Code> part. Use this when the content is
complex, or you have non-textual content inside.
</span>
),
},
]}
/>
<DataAttributesTable data={[ { attribute: "[data-state]", values: ["checked", "unchecked"], }, { attribute: "[data-highlighted]", values: "Present when highlighted", }, { attribute: "[data-disabled]", values: "Present when disabled", }, ]} />
The textual part of the item. It should only contain the text you want to see in the trigger when that item is selected. It should not be styled to ensure correct positioning.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
Renders when the item is selected. You can style this element directly, or you can use it as a wrapper to put an icon into, or both.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
An optional button used as an affordance to show the viewport overflow as well as functionaly enable scrolling upwards.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
An optional button used as an affordance to show the viewport overflow as well as functionaly enable scrolling downwards.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
Used to group multiple items. use in conjunction with Select.Label to ensure good accessibility via automatic labelling.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
Used to render the label of a group. It won't be focusable using arrow keys.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
Used to visually separate items in the select.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
]}
/>
An optional arrow element to render alongside the content. This can be used to help visually link the trigger with the Select.Content. Must be rendered inside Select.Content. Only available when position is set to popper.
<PropsTable data={[ { name: "asChild", required: false, type: "boolean", default: "false", description: ( <> Change the default rendered element for the one passed as a child, merging their props and behavior.
Read our <a href="../guides/composition">Composition</a> guide for
more details.
</>
),
},
{
name: "width",
type: "number",
default: 10,
description: <span>The width of the arrow in pixels.</span>,
},
{
name: "height",
type: "number",
default: 5,
description: <span>The height of the arrow in pixels.</span>,
},
]}
/>
By default, Select will behave similarly to a native MacOS menu by positioning Select.Content relative to the active item. If you would prefer an alternative positioning approach similar to Popover or DropdownMenu then you can set position to popper and make use of additional alignment options such as side, sideOffset and more.
// index.jsx
import { Select } from "radix-ui";
export default () => (
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content __position__="popper" __sideOffset__={5}>
…
</Select.Content>
</Select.Portal>
</Select.Root>
);
When using position="popper" on Select.Content, you may want to constrain the width of the content so that it matches the trigger width. You may also want to constrain its height to not exceed the viewport.
We expose several CSS custom properties such as --radix-select-trigger-width and --radix-select-content-available-height to support this. Use them to constrain the content dimensions.
// index.jsx
import { Select } from "radix-ui";
import "./styles.css";
export default () => (
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content
__className__="SelectContent"
position="popper"
sideOffset={5}
>
…
</Select.Content>
</Select.Portal>
</Select.Root>
);
/* styles.css */
.SelectContent {
width: var(__--radix-select-trigger-width__);
max-height: var(__--radix-select-content-available-height__);
}
You can add special styles to disabled items via the data-disabled attribute.
// index.jsx
import { Select } from "radix-ui";
import "./styles.css";
export default () => (
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content>
<Select.Viewport>
<Select.Item __className__="SelectItem" __disabled__>
…
</Select.Item>
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
</Select.Viewport>
</Select.Content>
</Select.Portal>
</Select.Root>
);
/* styles.css */
.SelectItem[__data-disabled__] {
color: "gainsboro";
}
You can use the placeholder prop on Value for when the select has no value. There's also a data-placeholder attribute on Trigger to help with styling.
// index.jsx
import { Select } from "radix-ui";
import "./styles.css";
export default () => (
<Select.Root>
<Select.Trigger __className__="SelectTrigger">
<Select.Value __placeholder__="Pick an option" />
<Select.Icon />
</Select.Trigger>
<Select.Portal>
<Select.Content>…</Select.Content>
</Select.Portal>
</Select.Root>
);
/* styles.css */
.SelectTrigger[__data-placeholder__] {
color: "gainsboro";
}
Use the Separator part to add a separator between items.
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content>
<Select.Viewport>
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
<Select.Separator />
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
</Select.Viewport>
</Select.Content>
</Select.Portal>
</Select.Root>
Use the Group and Label parts to group items in a section.
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content>
<Select.Viewport>
<Select.Group>
<Select.Label>Label</Select.Label>
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
</Select.Group>
</Select.Viewport>
</Select.Content>
</Select.Portal>
</Select.Root>
You can use custom content in your items.
import { Select } from "radix-ui";
export default () => (
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content>
<Select.Viewport>
<Select.Item>
<Select.ItemText>
Adolfo Hess
</Select.ItemText>
<Select.ItemIndicator>…</Select.ItemIndicator>
</Select.Item>
<Select.Item>…</Select.Item>
<Select.Item>…</Select.Item>
</Select.Viewport>
</Select.Content>
</Select.Portal>
</Select.Root>
);
By default the trigger will automatically display the selected item ItemText's content. You can control what appears by chosing to put things inside/outside the ItemText part.
If you need more flexibility, you can control the component using value/onValueChange props and passing children to SelectValue. Remember to make sure what you put in there is accessible.
const countries = { france: "🇫🇷", "united-kingdom": "🇬🇧", spain: "🇪🇸" };
export default () => {
const [value, setValue] = React.useState("france");
return (
<Select.Root __value__={value} __onValueChange__={setValue}>
<Select.Trigger>
<Select.Value __aria-label__={value}>
{__countries[value]__}
</Select.Value>
<Select.Icon />
</Select.Trigger>
<Select.Portal>
<Select.Content>
<Select.Viewport>
<Select.Item value="france">
<Select.ItemText>France</Select.ItemText>
<Select.ItemIndicator>…</Select.ItemIndicator>
</Select.Item>
<Select.Item value="united-kingdom">
<Select.ItemText>United Kingdom</Select.ItemText>
<Select.ItemIndicator>…</Select.ItemIndicator>
</Select.Item>
<Select.Item value="spain">
<Select.ItemText>Spain</Select.ItemText>
<Select.ItemIndicator>…</Select.ItemIndicator>
</Select.Item>
</Select.Viewport>
</Select.Content>
</Select.Portal>
</Select.Root>
);
};
The native scrollbar is hidden by default as we recommend using the ScrollUpButton and ScrollDownButton parts for the best UX. If you do not want to use these parts, compose your select with our Scroll Area primitive.
// index.jsx
import { Select, ScrollArea } from "radix-ui";
import "./styles.css";
export default () => (
<Select.Root>
<Select.Trigger>…</Select.Trigger>
<Select.Portal>
<Select.Content>
<ScrollArea.Root __className__="ScrollAreaRoot" type="auto">
<Select.Viewport __asChild__>
<ScrollArea.Viewport __className__="ScrollAreaViewport">
<StyledItem>…</StyledItem>
<StyledItem>…</StyledItem>
<StyledItem>…</StyledItem>
</ScrollArea.Viewport>
</Select.Viewport>
<ScrollArea.Scrollbar
__className__="ScrollAreaScrollbar"
orientation="vertical"
>
<ScrollArea.Thumb __className__="ScrollAreaThumb" />
</ScrollArea.Scrollbar>
</ScrollArea.Root>
</Select.Content>
</Select.Portal>
</Select.Root>
);
/* styles.css */
.ScrollAreaRoot {
width: 100%;
height: 100%;
}
.ScrollAreaViewport {
width: 100%;
height: 100%;
}
.ScrollAreaScrollbar {
width: 4px;
padding: 5px 2px;
}
.ScrollAreaThumb {
background: rgba(0, 0, 0, 0.3);
border-radius: 3px;
}
Adheres to the ListBox WAI-ARIA design pattern.
See the W3C Select-Only Combobox example for more information.
<KeyboardTable data={[ { keys: ["Space"], description: ( <span> When focus is on <Code>Select.Trigger</Code>, opens the select and focuses the selected item.
When focus is on an item, selects the focused item.
</span>
),
},
{
keys: ["Enter"],
description: (
<span>
When focus is on <Code>Select.Trigger</Code>, opens the select and
focuses the first item.
When focus is on an item, selects the focused item.
</span>
),
},
{
keys: ["ArrowDown"],
description: (
<span>
When focus is on <Code>Select.Trigger</Code>, opens the select.
When focus is on an item, moves focus to the next item.
</span>
),
},
{
keys: ["ArrowUp"],
description: (
<span>
When focus is on <Code>Select.Trigger</Code>, opens the select.
When focus is on an item, moves focus to the previous item.
</span>
),
},
{
keys: ["Esc"],
description: (
<span>
Closes the select and moves focus to <Code>Select.Trigger</Code>.
</span>
),
},
]}
/>
Use our Label component in order to offer a visual and accessible label for the select.
import { Select, Label } from "radix-ui";
export default () => (
<>
<Label>
Country
<Select.Root>…</Select.Root>
</Label>
<Label htmlFor="country">Country</Label>
<Select.Root>
<Select.Trigger __id__="country">…</Select.Trigger>
<Select.Portal>
<Select.Content>…</Select.Content>
</Select.Portal>
</Select.Root>
</>
);
Create your own API by abstracting the primitive parts into your own component.
Select and SelectItemThis example abstracts most of the parts.
import { Select, SelectItem } from "./your-select";
export default () => (
<Select defaultValue="2">
<SelectItem value="1">Item 1</SelectItem>
<SelectItem value="2">Item 2</SelectItem>
<SelectItem value="3">Item 3</SelectItem>
</Select>
);
// your-select.jsx
import * as React from "react";
import { Select as SelectPrimitive } from "radix-ui";
import {
CheckIcon,
ChevronDownIcon,
ChevronUpIcon,
} from "@radix-ui/react-icons";
export const Select = React.forwardRef(
({ children, ...props }, forwardedRef) => {
return (
<SelectPrimitive.Root {...props}>
<SelectPrimitive.Trigger ref={forwardedRef}>
<SelectPrimitive.Value />
<SelectPrimitive.Icon>
<ChevronDownIcon />
</SelectPrimitive.Icon>
</SelectPrimitive.Trigger>
<SelectPrimitive.Portal>
<SelectPrimitive.Content>
<SelectPrimitive.ScrollUpButton>
<ChevronUpIcon />
</SelectPrimitive.ScrollUpButton>
<SelectPrimitive.Viewport>{children}</SelectPrimitive.Viewport>
<SelectPrimitive.ScrollDownButton>
<ChevronDownIcon />
</SelectPrimitive.ScrollDownButton>
</SelectPrimitive.Content>
</SelectPrimitive.Portal>
</SelectPrimitive.Root>
);
},
);
export const SelectItem = React.forwardRef(
({ children, ...props }, forwardedRef) => {
return (
<SelectPrimitive.Item {...props} ref={forwardedRef}>
<SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
<SelectPrimitive.ItemIndicator>
<CheckIcon />
</SelectPrimitive.ItemIndicator>
</SelectPrimitive.Item>
);
},
);