A non-modal notification banner that displays important, concise messages requiring user acknowledgement.

The banner slides into view with an animated grow transition and renders inline, pushing the surrounding page content rather than overlaying it.

The component integrates with the Invoker Commands API: an Ignite button or a native <button> with command="--show" / "--hide" / "--toggle" and commandfor pointing to this element will call the corresponding method declaratively without any JavaScript.

Slots
default — The banner message text content.
prefix — An icon or illustration rendered to the left of the message. Useful for reinforcing the message type (info, warning, success, etc.).
actions — Custom action elements rendered in the banner's action area. When provided, replaces the default "OK" dismiss button.
CSS Parts
base — The root wrapper element of the banner.
spacer — The inner wrapper that controls the spacing around the banner content.
message — The container that holds the illustration and text content.
illustration — The container for the prefix slot (icon/illustration).
content — The container for the default message slot.
actions — The container for the action buttons slot.

Whether the banner is open.

Setting this property programmatically will immediately show or hide the banner without animation and without emitting close events. Prefer the show(), hide(), and toggle() methods for animated transitions.

open: boolean

Closes the banner with an animated grow-out transition.

Returns true when the banner was successfully closed, or false if it was already closed.

hide(): Promise<boolean>

Returns Promise<boolean>

Opens the banner with an animated grow-in transition.

Returns true when the banner was successfully opened, or false if it was already open.

show(): Promise<boolean>

Returns Promise<boolean>

Toggles the banner open or closed depending on its current state.

Equivalent to calling show() when closed and hide() when open. Returns true when the transition completed successfully.

toggle(): Promise<boolean>

Returns Promise<boolean>

Emitted after the banner has fully closed and its exit animation has completed.

onClosed(args: CustomEvent<void>): void

Parameters

Returns void

Emitted just before the banner closes in response to the default action button being clicked. Cancelable — call

onClosing(args: CustomEvent<void>): void

Parameters

Returns void