--- lang: en-US --- # Dropdown Toggleable menu for displaying lists of links and actions. ## Basic usage Hover on the dropdown menu to unfold it for more actions. :::demo The triggering element is rendered by the default `slot`, and the dropdown part is rendered by the `slot` named `dropdown`. By default, dropdown list shows when you hover on the triggering element without having to click it. dropdown/basic-usage ::: ## Triggering element Use the button to trigger the dropdown list. :::demo Use `split-button` to split the triggering element into a button group with the left button being a normal button and right one the actual triggering target. If you wanna insert a separator line between item three and item four, just add a class `divider` to item four. dropdown/triggering-element ::: ## How to trigger Click the triggering element or hover on it. :::demo Use the attribute `trigger`. By default, it is `hover`. dropdown/how-to-trigger ::: ## Menu hiding behavior Use `hide-on-click` to define if menu closes on clicking. :::demo By default menu will close when you click on menu items, and it can be turned off by setting hide-on-click to false. dropdown/menu-hiding-behavior ::: ## Command event Clicking each dropdown item fires an event whose parameter is assigned by each item. :::demo dropdown/command-event ::: ## Sizes Besides default size, Dropdown component provides three additional sizes for you to choose among different scenarios. :::demo Use attribute `size` to set additional sizes with `medium`, `small` or `mini`. dropdown/sizes ::: ## Dropdown Attributes | Attribute | Description | Type | Accepted Values | Default | | ------------- | ---------------------------------------------------------------------------------------------------- | --------------- | ---------------------------------------------------- | ------- | | type | menu button type, refer to `Button` Component, only works when `split-button` is true | string | — | — | | size | menu size, also works on the split button | string | medium / small / mini | — | | max-height | the max height of menu | string / number | — | — | | split-button | whether a button group is displayed | boolean | — | false | | disabled | Whether to disable | boolean | — | false | | placement | placement of pop menu | string | top/top-start/top-end/bottom/bottom-start/bottom-end | bottom | | trigger | how to trigger | string | hover/click/contextmenu | hover | | hide-on-click | whether to hide menu after clicking menu-item | boolean | — | true | | show-timeout | Delay time before show a dropdown (only works when trigger is `hover`) | number | — | 250 | | hide-timeout | Delay time before hide a dropdown (only works when trigger is `hover`) | number | — | 150 | | tabindex | [tabindex](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/tabindex) of Dropdown | number | — | 0 | ## Dropdown Slots | Name | Description | Subtags | | -------- | --------------------------------------------------------------------------------------------------------------------------------------------- | ------------- | | — | content of Dropdown. Notice: Must be a valid html dom element (ex. `,