Cascader
Selects one value by drilling through dependent levels of a hierarchy.
See it and copy it
Framework example
Choose Astro, React, or Elements to compare native usage against the shared visual output. Each example assumes the framework-level setup is already complete.
View Cascader code
Framework usage
Switch targets to compare the adapter code. This live preview runs the Astro example. React and Elements use their own behavior APIs; complete the matching framework setup before copying an example.---
import { Cascader } from '@santi020k/lumen-astro'
---
<Cascader
placeholder="Select category"
options={[
{
children: [
{ label: 'Item A1', value: 'a1' },
{ label: 'Item A2', value: 'a2' }
],
label: 'Category A',
value: 'a'
},
{
children: [{ label: 'Item B1', value: 'b1' }],
label: 'Category B',
value: 'b'
}
]}
/>import { Cascader } from '@santi020k/lumen-react'
export const Example = () => (
<>
<Cascader
placeholder="Select category"
options={[
{
children: [
{ label: 'Item A1', value: 'a1' },
{ label: 'Item A2', value: 'a2' }
],
label: 'Category A',
value: 'a'
},
{
children: [{ label: 'Item B1', value: 'b1' }],
label: 'Category B',
value: 'b'
}
]}
/>
</>
)<script type="module">
import { defineLumenElements } from '@santi020k/lumen-elements/define'
defineLumenElements()
</script>
<lumen-cascader
placeholder="Select category"
options={[
{
children: [
{ label: 'Item A1', value: 'a1' },
{ label: 'Item A2', value: 'a2' }
],
label: 'Category A',
value: 'a'
},
{
children: [{ label: 'Item B1', value: 'b1' }],
label: 'Category B',
value: 'b'
}
]}></lumen-cascader>Choose your target
Add this component
Choose the package for your runtime. All adapters share the Lumen stylesheet. Use the matching registry command when you want a local wrapper for that framework.
pnpm add @santi020k/lumen-astropnpm add @santi020k/lumen-astrolumen add Cascaderlumen add Cascaderpnpm add @santi020k/lumen-reactpnpm add @santi020k/lumen-reactlumen add Cascader --target reactlumen add Cascader --target reactpnpm add @santi020k/lumen-elementspnpm add @santi020k/lumen-elementslumen add Cascader --target elementslumen add Cascader --target elementsAPI reference
Lumen-specific props and runtime attributes for the Astro primitive. Use the framework differences above and the copyable examples for React composition and Elements attributes; the public adapter types define their supported contracts.
| Attribute | Values | Default | Description |
|---|---|---|---|
| options | CascaderOption[] | [] | Defines the hierarchical option branches. |
| name | string | - | Sets the submitted field name. |
| placeholder | string | "Select" | Sets the trigger text before a path is selected. |
| class, className | string | "" | Merges custom classes with the generated ui-* root classes. |
| ...native attributes | HTML attributes | - | Forwards standard attributes to the root element unless the component consumes them. |
Runtime events
CustomEvents dispatched by the Astro UIPrimitives runtime for this component.
| Event | Target | Detail | When |
|---|---|---|---|
| ui:cascader-change | Cascader root ([data-ui-cascader]) | { value: string } | Fires after a leaf option is selected and committed to the hidden input. |