Dropdown Menu

Displays a menu of items that users can select from when triggered.

	<script lang="ts">
  import { Avatar, DropdownMenu } from "bits-ui";
  import Cardholder from "phosphor-svelte/lib/Cardholder";
  import CaretRight from "phosphor-svelte/lib/CaretRight";
  import DotsThree from "phosphor-svelte/lib/DotsThree";
  import GearSix from "phosphor-svelte/lib/GearSix";
  import UserCircle from "phosphor-svelte/lib/UserCircle";
  import UserCirclePlus from "phosphor-svelte/lib/UserCirclePlus";
  import Bell from "phosphor-svelte/lib/Bell";
  import Check from "phosphor-svelte/lib/Check";
  import DotOutline from "phosphor-svelte/lib/DotOutline";
 
  let notifications = $state<"indeterminate" | boolean>(false);
  let invited = $state("");
</script>
 
<DropdownMenu.Root>
  <DropdownMenu.Trigger
    class="focus-visible border-bordinput bg-backgrounder-lt text-a-foreground inline-flex h-10 w-10 select-none items-center justify-center rounded-full border text-sm font-medium shadow-btn hover:bg-muted focus-visible:ring-2 focus-visible:ring-foreground focus-visible:ring-offset-2 focus-visible:ring-offset-background active:scale-98"
  >
    <DotsThree class="h-6 w-6 text-foreground" />
  </DropdownMenu.Trigger>
  <DropdownMenu.Portal>
    <DropdownMenu.Content
      class="focus-override w-[229px] rounded-xl border border-muted bg-background px-1 py-1.5 shadow-popover outline-none focus-visible:outline-none"
      sideOffset={8}
    >
      <DropdownMenu.Item
        class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
      >
        <div class="flex items-center">
          <UserCircle class="mr-2 size-5 text-foreground-alt" />
          Profile
        </div>
        <div class="ml-auto flex items-center gap-px">
          <kbd
            class="inline-flex size-5 items-center justify-center rounded-button border border-dark-10 bg-background-alt text-xs text-muted-foreground shadow-kbd"
          >
            ⌘
          </kbd>
          <kbd
            class="inline-flex size-5 items-center justify-center rounded-button border border-dark-10 bg-background-alt text-[10px] text-muted-foreground shadow-kbd"
          >
            P
          </kbd>
        </div>
      </DropdownMenu.Item>
      <DropdownMenu.Item
        class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
      >
        <div class="flex items-center">
          <Cardholder class="mr-2 size-5 text-foreground-alt" />
          Billing
        </div>
        <div class="ml-auto flex items-center gap-px">
          <kbd
            class="inline-flex size-5 items-center justify-center rounded-button border border-dark-10 bg-background-alt text-xs text-muted-foreground shadow-kbd"
          >
            ⌘
          </kbd>
          <kbd
            class="inline-flex size-5 items-center justify-center rounded-button border border-dark-10 bg-background-alt text-[10px] text-muted-foreground shadow-kbd"
          >
            B
          </kbd>
        </div>
      </DropdownMenu.Item>
      <DropdownMenu.Item
        class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
      >
        <div class="flex items-center">
          <GearSix class="mr-2 size-5 text-foreground-alt" />
          Settings
        </div>
        <div class="ml-auto flex items-center gap-px">
          <kbd
            class="inline-flex size-5 items-center justify-center rounded-button border border-dark-10 bg-background-alt text-xs text-muted-foreground shadow-kbd"
          >
            ⌘
          </kbd>
          <kbd
            class="inline-flex size-5 items-center justify-center rounded-button border border-dark-10 bg-background-alt text-[10px] text-muted-foreground shadow-kbd"
          >
            S
          </kbd>
        </div>
      </DropdownMenu.Item>
      <DropdownMenu.CheckboxItem
        bind:checked={notifications}
        class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
      >
        {#snippet children({ checked })}
          <div class="flex items-center pr-4">
            <Bell class="mr-2 size-5 text-foreground-alt" />
            Notifications
          </div>
          <div class="ml-auto flex items-center gap-px">
            {#if checked}
              <Check class="size-4" />
            {/if}
          </div>
        {/snippet}
      </DropdownMenu.CheckboxItem>
      <DropdownMenu.Sub>
        <DropdownMenu.SubTrigger
          class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted data-[state=open]:bg-muted"
        >
          <div class="flex items-center">
            <UserCirclePlus class="mr-2 size-5 text-foreground-alt" />
            Workspace
          </div>
          <div class="ml-auto flex items-center gap-px">
            <CaretRight class="size-5 text-foreground-alt" />
          </div>
        </DropdownMenu.SubTrigger>
        <DropdownMenu.SubContent
          id="subcontent"
          class="w-[209px] rounded-xl border border-muted bg-background px-1 py-1.5 shadow-popover !ring-0 !ring-transparent"
          sideOffset={10}
        >
          <DropdownMenu.RadioGroup bind:value={invited}>
            <DropdownMenu.RadioItem
              value="huntabyte"
              class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
            >
              {#snippet children({ checked })}
                <Avatar.Root
                  class="relative mr-3 flex size-5 shrink-0 overflow-hidden rounded-full border border-foreground/50"
                >
                  <Avatar.Image
                    src="https://github.com/huntabyte.png"
                    alt="@huntabyte"
                    class="aspect-square h-full w-full"
                  />
                  <Avatar.Fallback
                    class="flex h-full w-full items-center justify-center rounded-full bg-muted text-xxs"
                    >HJ</Avatar.Fallback
                  >
                </Avatar.Root>
                @huntabyte
                {#if checked}
                  <DotOutline class="ml-auto size-4" />
                {/if}
              {/snippet}
            </DropdownMenu.RadioItem>
            <DropdownMenu.RadioItem
              value="pavel"
              class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
            >
              {#snippet children({ checked })}
                <Avatar.Root
                  class="relative mr-3 flex size-5 shrink-0 overflow-hidden rounded-full border border-foreground/50"
                >
                  <Avatar.Image
                    src="https://github.com/pavelstianko.png"
                    alt="@pavel_stianko"
                    class="aspect-square h-full w-full"
                  />
                  <Avatar.Fallback
                    class="flex h-full w-full items-center justify-center rounded-full bg-muted text-xs"
                    >PS</Avatar.Fallback
                  >
                </Avatar.Root>
                @pavel_stianko
                {#if checked}
                  <DotOutline class="ml-auto size-4" />
                {/if}
              {/snippet}
            </DropdownMenu.RadioItem>
            <DropdownMenu.RadioItem
              value="cokakoala"
              class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
            >
              {#snippet children({ checked })}
                <Avatar.Root
                  class="relative mr-3 flex size-5 shrink-0 overflow-hidden rounded-full border border-foreground/50"
                >
                  <Avatar.Image
                    src="https://github.com/adriangonz97.png"
                    alt="@cokakoala_"
                    class="aspect-square h-full w-full"
                  />
                  <Avatar.Fallback
                    class="flex h-full w-full items-center justify-center rounded-full bg-muted text-xs"
                    >CK</Avatar.Fallback
                  >
                </Avatar.Root>
                @cokakoala_
                {#if checked}
                  <DotOutline class="ml-auto size-4" />
                {/if}
              {/snippet}
            </DropdownMenu.RadioItem>
            <DropdownMenu.RadioItem
              value="tglide"
              class="flex h-10 select-none items-center rounded-button py-3 pl-3 pr-1.5 text-sm font-medium !ring-0 !ring-transparent data-[highlighted]:bg-muted"
            >
              {#snippet children({ checked })}
                <Avatar.Root
                  class="relative mr-3 flex size-5 shrink-0 overflow-hidden rounded-full border border-foreground/50"
                >
                  <Avatar.Image
                    src="https://github.com/tglide.png"
                    alt="@tglide"
                    class="aspect-square h-full w-full"
                  />
                  <Avatar.Fallback
                    class="flex h-full w-full items-center justify-center rounded-full bg-muted text-xs"
                  >
                    TL
                  </Avatar.Fallback>
                </Avatar.Root>
                @thomasglopes
                {#if checked}
                  <DotOutline class="ml-auto size-4" />
                {/if}
              {/snippet}
            </DropdownMenu.RadioItem>
          </DropdownMenu.RadioGroup>
        </DropdownMenu.SubContent>
      </DropdownMenu.Sub>
    </DropdownMenu.Content>
  </DropdownMenu.Portal>
</DropdownMenu.Root>

Structure

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
</script>
 
<DropdownMenu.Root>
	<DropdownMenu.Trigger />
 
	<DropdownMenu.Content>
		<DropdownMenu.Group>
			<DropdownMenu.GroupHeading />
			<DropdownMenu.Item />
		</DropdownMenu.Group>
 
		<DropdownMenu.Group>
			<DropdownMenu.Item />
		</DropdownMenu.Group>
 
		<DropdownMenu.CheckboxItem>
			<DropdownMenu.CheckboxIndicator />
		</DropdownMenu.CheckboxItem>
 
		<DropdownMenu.RadioGroup>
			<DropdownMenu.RadioItem>
				<DropdownMenu.RadioIndicator />
			</DropdownMenu.RadioItem>
		</DropdownMenu.RadioGroup>
 
		<DropdownMenu.Sub>
			<DropdownMenu.SubTrigger />
			<DropdownMenu.SubContent />
		</DropdownMenu.Sub>
 
		<DropdownMenu.Separator />
		<DropdownMenu.Arrow />
	</DropdownMenu.Content>
</DropdownMenu.Root>

Reusable Components

If you're planning to use Dropdown Menu in multiple places, you can create a reusable component that wraps the Dropdown Menu component.

This example shows you how to create a Dropdown Menu component that accepts a few custom props that make it more capable.

MyDropdownMenu.svelte
	<script lang="ts">
	import type { Snippet } from "svelte";
	import { DropdownMenu, type WithoutChild } from "bits-ui";
 
	type Props = DropdownMenu.Props & {
		buttonText: string;
		items: string[];
		contentProps?: WithoutChild<DropdownMenu.Content.Props>;
		// other component props if needed
	};
 
	let {
		open = $bindable(false),
		children,
		buttonText,
		items,
		contentProps,
		...restProps
	}: Props = $props();
</script>
 
<DropdownMenu.Root bind:open {...restProps}>
	<DropdownMenu.Trigger>
		{buttonText}
	</DropdownMenu.Trigger>
	<DropdownMenu.Portal>
		<DropdownMenu.Content {...contentProps}>
			<DropdownMenu.Group aria-label={buttonText}>
				{#each items as item}
					<DropdownMenu.Item textValue={item}>
						{item}
					</DropdownMenu.Item>
				{/each}
			</DropdownMenu.Group>
		</DropdownMenu.Content>
	</DropdownMenu.Portal>
</DropdownMenu.Root>

You can then use the MyDropdownMenu component like this:

	<script lang="ts">
	import MyDropdownMenu from "./MyDropdownMenu.svelte";
</script>
 
<MyDropdownMenu
	buttonText="Select a manager"
	items={["Michael Scott", "Dwight Schrute", "Jim Halpert"]}
/>

Managing Open State

Bits UI offers several approaches to manage and synchronize the Dropdown Menu's open state, catering to different levels of control and integration needs.

1. Two-Way Binding

For seamless state synchronization, use Svelte's bind:open directive. This method automatically keeps your local state in sync with the component's internal state.

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
	let isOpen = $state(false);
</script>
 
<button onclick={() => (isOpen = true)}>Open Context Menu</button>
 
<DropdownMenu.Root bind:open={isOpen}>
	<!-- ... -->
</DropdownMenu.Root>

Key Benefits

  • Simplifies state management
  • Automatically updates isOpen when the menu closes/opens (e.g., via escape key)
  • Allows external control (e.g., opening via a separate button)

2. Change Handler

For more granular control or to perform additional logic on state changes, use the onOpenChange prop. This approach is useful when you need to execute custom logic alongside state updates.

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
	let isOpen = $state(false);
</script>
 
<DropdownMenu.Root
	open={isOpen}
	onOpenChange={(o) => {
		isOpen = o;
		// additional logic here.
	}}
>
	<!-- ... -->
</DropdownMenu.Root>

Use Cases

  • Implementing custom behaviors on open/close
  • Integrating with external state management solutions
  • Triggering side effects (e.g., logging, data fetching)

3. Fully Controlled

For complete control over the dialog's open state, use the controlledOpen prop. This approach requires you to manually manage the open state, giving you full control over when and how the dialog responds to open/close events.

To implement controlled state:

  1. Set the controlledOpen prop to true on the DropdownMenu.Root component.
  2. Provide an open prop to DropdownMenu.Root, which should be a variable holding the current state.
  3. Implement an onOpenChange handler to update the state when the internal state changes.
	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
	let myOpen = $state(false);
</script>
 
<DropdownMenu.Root controlledOpen open={myOpen} onOpenChange={(o) => (myOpen = o)}>
	<!-- ... -->
</DropdownMenu.Root>

When to Use

  • Implementing complex open/close logic
  • Coordinating multiple UI elements
  • Debugging state-related issues

Groups

To group related menu items, you can use the DropdownMenu.Group component along with either a DropdownMenu.GroupHeading or an aria-label attribute on the DropdownMenu.Group component.

	<DropdownMenu.Group>
	<DropdownMenu.GroupHeading>File</DropdownMenu.GroupHeading>
	<DropdownMenu.Item>New</DropdownMenu.Item>
	<DropdownMenu.Item>Open</DropdownMenu.Item>
	<DropdownMenu.Item>Save</DropdownMenu.Item>
	<DropdownMenu.Item>Save As</DropdownMenu.Item>
</DropdownMenu.Group>
<!-- or -->
<DropdownMenu.Group aria-label="file">
	<DropdownMenu.Item>New</DropdownMenu.Item>
	<DropdownMenu.Item>Open</DropdownMenu.Item>
	<DropdownMenu.Item>Save</DropdownMenu.Item>
	<DropdownMenu.Item>Save As</DropdownMenu.Item>
</DropdownMenu.Group>

Group Heading

The DropdownMenu.GroupHeading component must be a child of either a DropdownMenu.Group or DropdownMenu.RadioGroup component. If used on its own, an error will be thrown during development.

	<DropdownMenu.Group>
	<DropdownMenu.GroupHeading>File</DropdownMenu.GroupHeading>
	<!-- ... items here -->
</DropdownMenu.Group>
 
<!-- or -->
 
<DropdownMenu.RadioGroup>
	<DropdownMenu.GroupHeading>Favorite color</DropdownMenu.GroupHeading>
	<!-- ... radio items here -->
</DropdownMenu.RadioGroup>

Checkbox Items

You can use the DropdownMenu.CheckboxItem component to create a menuitemcheckbox element to add checkbox functionality to menu items.

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
 
	let notifications = $state(true);
</script>
 
<DropdownMenu.CheckboxItem bind:checked={notifications}>
	{#snippet children({ checked })}
		{#if checked}
			✅
		{/if}
		Notifications
	{/snippet}
</DropdownMenu.CheckboxItem>

The checked state does not persist between menu open/close cycles. To persist the state, you must store it in a $state variable and pass it to the checked prop.

Radio Groups

You can combine the DropdownMenu.RadioGroup and DropdownMenu.RadioItem components to create a radio group within a menu.

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
 
	const values = ["one", "two", "three"];
	let value = $state("one");
</script>
 
<DropdownMenu.RadioGroup bind:value>
	<DropdownMenu.GroupHeading>Favorite number</DropdownMenu.GroupHeading>
	{#each values as value}
		<DropdownMenu.RadioItem {value}>
			{#snippet children({ checked })}
				{#if checked}
					✅
				{/if}
				{value}
			{/snippet}
		</DropdownMenu.RadioItem>
	{/each}
</DropdownMenu.RadioGroup>

The value state does not persist between menu open/close cycles. To persist the state, you must store it in a $state variable and pass it to the value prop.

Nested Menus

You can create nested menus using the DropdownMenu.Sub component to create complex menu structures.

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
</script>
 
<DropdownMenu.Content>
	<DropdownMenu.Item>Item 1</DropdownMenu.Item>
	<DropdownMenu.Item>Item 2</DropdownMenu.Item>
	<DropdownMenu.Sub>
		<DropdownMenu.SubTrigger>Open Sub Menu</DropdownMenu.SubTrigger>
		<DropdownMenu.SubContent>
			<DropdownMenu.Item>Sub Item 1</DropdownMenu.Item>
			<DropdownMenu.Item>Sub Item 2</DropdownMenu.Item>
		</DropdownMenu.SubContent>
	</DropdownMenu.Sub>
</DropdownMenu.Content>

Svelte Transitions

You can use the forceMount prop along with the child snippet to forcefully mount the DropdownMenu.Content component to use Svelte Transitions or another animation library that requires more control.

	<script lang="ts">
	import { DropdownMenu } from "bits-ui";
	import { fly } from "svelte/transition";
</script>
 
<DropdownMenu.Content forceMount>
	{#snippet child({ props, open })}
		{#if open}
			<div {...props} transition:fly>
				<DropdownMenu.Item>Item 1</DropdownMenu.Item>
				<DropdownMenu.Item>Item 2</DropdownMenu.Item>
			</div>
		{/if}
	{/snippet}
</DropdownMenu.Content>

Of course, this isn't the prettiest syntax, so it's recommended to create your own reusable content component that handles this logic if you intend to use this approach. For more information on using transitions with Bits UI components, see the Transitions documentation.

API Reference

DropdownMenu.Root

The root component which manages & scopes the state of the dropdown menu.

Property Type Description
open $bindable
boolean

The open state of the menu.

Default: false
onOpenChange
function

A callback that is fired when the menu's open state changes.

Default: undefined
controlledOpen
boolean

Whether or not the open state is controlled or not. If true, the component will not update the open state internally, instead it will call onOpenChange when it would have otherwise, and it is up to you to update the open prop that is passed to the component.

Default: false
dir
enum

The reading direction of the app.

Default: ltr
children
Snippet

The children content to render.

Default: undefined

DropdownMenu.Trigger

The button element which toggles the dropdown menu.

Property Type Description
disabled
boolean

Whether or not the menu trigger is disabled.

Default: false
ref $bindable
HTMLButtonElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-trigger
''

Present on the trigger element.

DropdownMenu.Portal

A component that portals the content of the dropdown menu to the body or a custom target (if provided).

Property Type Description
to
union

Where to render the content when it is open. Defaults to the body. Can be disabled by passing null

Default: body
disabled
boolean

Whether the portal is disabled or not. When disabled, the content will be rendered in its original DOM location.

Default: false
children
Snippet

The children content to render.

Default: undefined

DropdownMenu.Content

The content displayed when the dropdown menu is open.

Property Type Description
side
enum

The preferred side of the anchor to render the floating element against when open. Will be reversed when collisions occur.

Default: bottom
sideOffset
number

The distance in pixels from the anchor to the floating element.

Default: 0
align
enum

The preferred alignment of the anchor to render the floating element against when open. This may change when collisions occur.

Default: start
alignOffset
number

The distance in pixels from the anchor to the floating element.

Default: 0
arrowPadding
number

The amount in pixels of virtual padding around the viewport edges to check for overflow which will cause a collision.

Default: 0
avoidCollisions
boolean

When true, overrides the side and align options to prevent collisions with the boundary edges.

Default: true
collisionBoundary
union

A boundary element or array of elements to check for collisions against.

Default: undefined
collisionPadding
union

The amount in pixels of virtual padding around the viewport edges to check for overflow which will cause a collision.

Default: 0
sticky
enum

The sticky behavior on the align axis. 'partial' will keep the content in the boundary as long as the trigger is at least partially in the boundary whilst 'always' will keep the content in the boundary regardless.

Default: partial
hideWhenDetached
boolean

When true, hides the content when it is detached from the DOM. This is useful for when you want to hide the content when the user scrolls away.

Default: true
updatePositionStrategy
enum

The strategy to use when updating the position of the content. When 'optimized' the content will only be repositioned when the trigger is in the viewport. When 'always' the content will be repositioned whenever the position changes.

Default: optimized
strategy
enum

The positioning strategy to use for the floating element. When 'fixed' the element will be positioned relative to the viewport. When 'absolute' the element will be positioned relative to the nearest positioned ancestor.

Default: fixed
preventScroll
boolean

When true, prevents the body from scrolling when the content is open. This is useful when you want to use the content as a modal.

Default: true
customAnchor
union

Use an element other than the trigger to anchor the content to. If provided, the content will be anchored to the provided element instead of the trigger.

Default: null
onEscapeKeydown
function

Callback fired when an escape keydown event occurs in the floating content. You can call event.preventDefault() to prevent the default behavior of handling the escape keydown event.

Default: undefined
escapeKeydownBehavior
enum

The behavior to use when an escape keydown event occurs in the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onInteractOutside
function

Callback fired when an outside interaction event completes, which is either a pointerup, mouseup, or touchend event, depending on the user's input device. You can call event.preventDefault() to prevent the default behavior of handling the outside interaction.

Default: undefined
onFocusOutside
function

Callback fired when focus leaves the dismissible layer. You can call event.preventDefault() to prevent the default behavior on focus leaving the layer.

Default: undefined
interactOutsideBehavior
enum

The behavior to use when an interaction occurs outside of the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onOpenAutoFocus
function

Event handler called when auto-focusing the content as it is opened. Can be prevented.

Default: undefined
onCloseAutoFocus
function

Event handler called when auto-focusing the content as it is closed. Can be prevented.

Default: undefined
trapFocus
boolean

Whether or not to trap the focus within the content when open.

Default: true
forceMount
boolean

Whether or not to forcefully mount the content. This is useful if you want to use Svelte transitions or another animation library for the content.

Default: false
preventOverflowTextSelection
boolean

When true, prevents the text selection from overflowing the bounds of the element.

Default: true
dir
enum

The reading direction of the app.

Default: ltr
loop
boolean

Whether or not to loop through the menu items in when navigating with the keyboard.

Default: false
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-content
''

Present on the content element.

DropdownMenu.ContentStatic

The content displayed when the dropdown menu is open. (Static/No Floating UI)

Property Type Description
onEscapeKeydown
function

Callback fired when an escape keydown event occurs in the floating content. You can call event.preventDefault() to prevent the default behavior of handling the escape keydown event.

Default: undefined
escapeKeydownBehavior
enum

The behavior to use when an escape keydown event occurs in the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onInteractOutside
function

Callback fired when an outside interaction event completes, which is either a pointerup, mouseup, or touchend event, depending on the user's input device. You can call event.preventDefault() to prevent the default behavior of handling the outside interaction.

Default: undefined
onFocusOutside
function

Callback fired when focus leaves the dismissible layer. You can call event.preventDefault() to prevent the default behavior on focus leaving the layer.

Default: undefined
interactOutsideBehavior
enum

The behavior to use when an interaction occurs outside of the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onOpenAutoFocus
function

Event handler called when auto-focusing the content as it is opened. Can be prevented.

Default: undefined
onCloseAutoFocus
function

Event handler called when auto-focusing the content as it is closed. Can be prevented.

Default: undefined
trapFocus
boolean

Whether or not to trap the focus within the content when open.

Default: true
preventScroll
boolean

When true, prevents the body from scrolling when the content is open. This is useful when you want to use the content as a modal.

Default: true
forceMount
boolean

Whether or not to forcefully mount the content. This is useful if you want to use Svelte transitions or another animation library for the content.

Default: false
preventOverflowTextSelection
boolean

When true, prevents the text selection from overflowing the bounds of the element.

Default: true
dir
enum

The reading direction of the app.

Default: ltr
loop
boolean

Whether or not to loop through the menu items in when navigating with the keyboard.

Default: false
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-content
''

Present on the content element.

DropdownMenu.Item

A menu item within the dropdown menu.

Property Type Description
disabled
boolean

Whether or not the menu item is disabled.

Default: false
textValue
string

The text value of the checkbox menu item. This is used for typeahead.

Default: undefined
onSelect
function

A callback that is fired when the menu item is selected.

Default: undefined
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-orientation
'vertical'
data-highlighted
''

Present when the menu item is highlighted.

data-disabled
''

Present when the menu item is disabled.

data-menu-item
''

Present on the item element.

DropdownMenu.CheckboxItem

A menu item that can be controlled and toggled like a checkbox.

Property Type Description
disabled
boolean

Whether or not the checkbox menu item is disabled. Disabled items cannot be interacted with and are skipped when navigating with the keyboard.

Default: false
checked $bindable
union

The checkbox menu item's checked state.

Default: false
onCheckedChange
function

A callback that is fired when the checkbox menu item's checked state changes.

Default: undefined
controlledChecked
boolean

Whether or not the checked state is controlled or not. If true, the component will not update the checked state internally, instead it will call onCheckedChange when it would have otherwise, and it is up to you to update the checked prop that is passed to the component.

Default: false
textValue
string

The text value of the checkbox menu item. This is used for typeahead.

Default: undefined
onSelect
function

A callback that is fired when the menu item is selected.

Default: undefined
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-orientation
'vertical'
data-highlighted
''

Present when the menu item is highlighted.

data-disabled
''

Present when the menu item is disabled.

data-state
enum

The checkbox menu item's checked state.

DropdownMenu.RadioGroup

A group of radio menu items, where only one can be checked at a time.

Property Type Description
value $bindable
string

The value of the currently checked radio menu item.

Default: undefined
onValueChange
function

A callback that is fired when the radio group's value changes.

Default: undefined
controlledValue
boolean

Whether or not the value is controlled or not. If true, the component will not update the value state internally, instead it will call onValueChange when it would have otherwise, and it is up to you to update the value prop that is passed to the component.

Default: false
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-menu-radio-group
''

Present on the radio group element.

DropdownMenu.RadioItem

A menu item that can be controlled and toggled like a radio button. It must be a child of a RadioGroup.

Property Type Description
value required
string

The value of the radio item. When checked, the parent RadioGroup's value will be set to this value.

Default: undefined
disabled
boolean

Whether or not the radio menu item is disabled. Disabled items cannot be interacted with and are skipped when navigating with the keyboard.

Default: false
textValue
string

The text value of the checkbox menu item. This is used for typeahead.

Default: undefined
onSelect
function

A callback that is fired when the menu item is selected.

Default: undefined
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-orientation
'vertical'
data-highlighted
''

Present when the menu item is highlighted.

data-disabled
''

Present when the menu item is disabled.

data-state
enum

The radio menu item's checked state.

data-value
''

The value of the radio item.

data-menu-radio-item
''

Present on the radio item element.

DropdownMenu.Separator

A horizontal line to visually separate menu items.

Property Type Description
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-orientation
'vertical'

The orientation of the separator.

data-menu-separator
''

Present on the separator element.

DropdownMenu.Arrow

An optional arrow which points to the dropdown menu's anchor/trigger point.

Property Type Description
width
number

The width of the arrow in pixels.

Default: 8
height
number

The height of the arrow in pixels.

Default: 8
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-arrow
''

Present on the arrow element.

DropdownMenu.Group

A group of menu items. It should be passed an aria-label or have a child Menu.GroupHeading component to provide a label for a group of menu items.

Property Type Description
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-menu-group
''

Present on the group element.

DropdownMenu.GroupHeading

A heading for a group which will be skipped when navigating with the keyboard. It is used to provide a description for a group of menu items and must be a child of either a DropdownMenu.Group or DropdownMenu.RadioGroup component.

Property Type Description
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-menu-group-heading
''

Present on the group heading element.

DropdownMenu.Sub

A submenu belonging to the parent dropdown menu. Responsible for managing the state of the submenu.

Property Type Description
open $bindable
boolean

The open state of the submenu.

Default: false
onOpenChange
function

A callback that is fired when the submenu's open state changes.

Default: undefined
controlledOpen
boolean

Whether or not the open state is controlled or not. If true, the component will not update the open state internally, instead it will call onOpenChange when it would have otherwise, and it is up to you to update the open prop that is passed to the component.

Default: false
children
Snippet

The children content to render.

Default: undefined

DropdownMenu.SubTrigger

A menu item which when pressed or hovered, opens the submenu it is a child of.

Property Type Description
disabled
boolean

Whether or not the submenu trigger is disabled.

Default: false
textValue
string

The text value of the checkbox menu item. This is used for typeahead.

Default: undefined
onSelect
function

A callback that is fired when the menu item is selected.

Default: undefined
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-orientation
'vertical'
data-highlighted
''

Present when the menu item is highlighted.

data-disabled
''

Present when the menu item is disabled.

data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-sub-trigger
''

Present on the submenu trigger element.

DropdownMenu.SubContent

The submenu content displayed when the parent submenu is open.

Property Type Description
side
enum

The preferred side of the anchor to render the floating element against when open. Will be reversed when collisions occur.

Default: bottom
sideOffset
number

The distance in pixels from the anchor to the floating element.

Default: 0
align
enum

The preferred alignment of the anchor to render the floating element against when open. This may change when collisions occur.

Default: start
alignOffset
number

The distance in pixels from the anchor to the floating element.

Default: 0
arrowPadding
number

The amount in pixels of virtual padding around the viewport edges to check for overflow which will cause a collision.

Default: 0
avoidCollisions
boolean

When true, overrides the side and align options to prevent collisions with the boundary edges.

Default: true
collisionBoundary
union

A boundary element or array of elements to check for collisions against.

Default: undefined
collisionPadding
union

The amount in pixels of virtual padding around the viewport edges to check for overflow which will cause a collision.

Default: 0
sticky
enum

The sticky behavior on the align axis. 'partial' will keep the content in the boundary as long as the trigger is at least partially in the boundary whilst 'always' will keep the content in the boundary regardless.

Default: partial
hideWhenDetached
boolean

When true, hides the content when it is detached from the DOM. This is useful for when you want to hide the content when the user scrolls away.

Default: true
updatePositionStrategy
enum

The strategy to use when updating the position of the content. When 'optimized' the content will only be repositioned when the trigger is in the viewport. When 'always' the content will be repositioned whenever the position changes.

Default: optimized
strategy
enum

The positioning strategy to use for the floating element. When 'fixed' the element will be positioned relative to the viewport. When 'absolute' the element will be positioned relative to the nearest positioned ancestor.

Default: fixed
preventScroll
boolean

When true, prevents the body from scrolling when the content is open. This is useful when you want to use the content as a modal.

Default: true
customAnchor
union

Use an element other than the trigger to anchor the content to. If provided, the content will be anchored to the provided element instead of the trigger.

Default: null
onEscapeKeydown
function

Callback fired when an escape keydown event occurs in the floating content. You can call event.preventDefault() to prevent the default behavior of handling the escape keydown event.

Default: undefined
escapeKeydownBehavior
enum

The behavior to use when an escape keydown event occurs in the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onInteractOutside
function

Callback fired when an outside interaction event completes, which is either a pointerup, mouseup, or touchend event, depending on the user's input device. You can call event.preventDefault() to prevent the default behavior of handling the outside interaction.

Default: undefined
onFocusOutside
function

Callback fired when focus leaves the dismissible layer. You can call event.preventDefault() to prevent the default behavior on focus leaving the layer.

Default: undefined
interactOutsideBehavior
enum

The behavior to use when an interaction occurs outside of the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onOpenAutoFocus
function

Event handler called when auto-focusing the content as it is opened. Can be prevented.

Default: undefined
onCloseAutoFocus
function

Event handler called when auto-focusing the content as it is closed. Can be prevented.

Default: undefined
trapFocus
boolean

Whether or not to trap the focus within the content when open.

Default: true
forceMount
boolean

Whether or not to forcefully mount the content. This is useful if you want to use Svelte transitions or another animation library for the content.

Default: false
preventOverflowTextSelection
boolean

When true, prevents the text selection from overflowing the bounds of the element.

Default: true
dir
enum

The reading direction of the app.

Default: ltr
loop
boolean

Whether or not to loop through the menu items in when navigating with the keyboard.

Default: false
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-sub-content
''

Present on the submenu content element.

DropdownMenu.SubContentStatic

The submenu content displayed when the parent submenu menu is open. (Static/No Floating UI)

Property Type Description
onEscapeKeydown
function

Callback fired when an escape keydown event occurs in the floating content. You can call event.preventDefault() to prevent the default behavior of handling the escape keydown event.

Default: undefined
escapeKeydownBehavior
enum

The behavior to use when an escape keydown event occurs in the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onInteractOutside
function

Callback fired when an outside interaction event completes, which is either a pointerup, mouseup, or touchend event, depending on the user's input device. You can call event.preventDefault() to prevent the default behavior of handling the outside interaction.

Default: undefined
onFocusOutside
function

Callback fired when focus leaves the dismissible layer. You can call event.preventDefault() to prevent the default behavior on focus leaving the layer.

Default: undefined
interactOutsideBehavior
enum

The behavior to use when an interaction occurs outside of the floating content. 'close' will close the content immediately. 'ignore' will prevent the content from closing. 'defer-otherwise-close' will defer to the parent element if it exists, otherwise it will close the content. 'defer-otherwise-ignore' will defer to the parent element if it exists, otherwise it will ignore the interaction.

Default: close
onOpenAutoFocus
function

Event handler called when auto-focusing the content as it is opened. Can be prevented.

Default: undefined
onCloseAutoFocus
function

Event handler called when auto-focusing the content as it is closed. Can be prevented.

Default: undefined
trapFocus
boolean

Whether or not to trap the focus within the content when open.

Default: true
forceMount
boolean

Whether or not to forcefully mount the content. This is useful if you want to use Svelte transitions or another animation library for the content.

Default: false
preventOverflowTextSelection
boolean

When true, prevents the text selection from overflowing the bounds of the element.

Default: true
dir
enum

The reading direction of the app.

Default: ltr
loop
boolean

Whether or not to loop through the menu items when reaching the end of the list when using the keyboard.

Default: true
ref $bindable
HTMLDivElement

The underlying DOM element being rendered. You can bind to this to get a reference to the element.

Default: undefined
children
Snippet

The children content to render.

Default: undefined
child
Snippet

Use render delegation to render your own element. See delegation docs for more information.

Default: undefined
Data Attribute Value Description
data-state
enum

The open state of the menu or submenu the element controls or belongs to.

data-menu-sub-content
''

Present on the submenu content element.