`ComboBox` combines a text input with a dropdown menu to let users select from predefined options or enter custom values. It supports filtering, custom item rendering, and various states.
`ComboBox` is keyed for performance reasons.
Every items object must have a unique "id" property.
## Default
Create a combobox with a title and placeholder text. Each item requires a unique `id` and `text`.
## Custom slot
Override the default slot to customize how each item displays. Access the item and index through the `let:` directive.
## Hidden label
Set `hideLabel` to `true` to visually hide the label while keeping it accessible to screen readers.
## Initial selected id
Set `selectedId` to pre-select an item when the combobox loads.
## Reactive example
See how the combobox responds to user input and selection changes.
## Clear selection
Use `bind:this` to access the component instance and call `ComboBox.clear()` to programmatically clear the selection.
Set `focus: false` in the method options to prevent re-focusing the input.
## Multiple combo boxes
See how to manage multiple comboboxes in a form.
## Filterable
Enable filtering to let users search through the options.
## Filterable with custom label
Set `itemToString` to customize how items display in the filterable combobox.
## Top direction
Set `direction` to `"top"` to make the dropdown menu appear above the input.
## Light variant
Set `light` to `true` to use the light color scheme.
## Extra-large size
Set `size` to `"xl"` for an extra-large combobox.
## Small size
Set `size` to `"sm"` for a small combobox.
## Invalid state
Set `invalid` to `true` and provide `invalidText` to show an error message.
## Warning state
Set `warn` to `true` and provide `warnText` to show a warning message.
## Disabled state
Set `disabled` to `true` to prevent interaction with the combobox.
## Disabled items
Set `disabled: true` in an item object to disable specific options.