API Reference > ui-framework > Notification Notification Classes for working with a Notification or Message Classes Name Description ActivityCenterField Activity Center Field React component. ActivityMessageCancelledEvent Activity Message Cancelled Event class. ActivityMessageUpdatedEvent Activity Message Added Event class. AppNotificationManager The AppNotificationManager class is a subclass of NotificationManager in @bentley/imodeljs-frontend. ElementTooltip ElementTooltip React component. ElementTooltipChangedEvent ElementTooltip Changed Event class. InputFieldMessage InputField message pops up near pointer when attempting an invalid interaction. InputFieldMessageAddedEvent Input Field Message Added Event class InputFieldMessageRemovedEvent Input Field Message Removed Event class. MessageAddedEvent Message Added Event class. MessageCenterField Message Center Field React component. MessageManager The MessageManager class manages messages and prompts. PointerMessage Pointer message pops up near pointer when attempting an invalid interaction. PointerMessageChangedEvent Pointer Message Changed Event emitted by the PointerMessage component ToolAssistanceField Tool Assistance Field React component. Beta Interfaces Name Description ActivityMessageEventArgs Activity Message Event arguments. ElementTooltipChangedEventArgs ElementTooltipChangedEvent arguments. InputFieldMessageEventArgs Input Field Message Event arguments. MessageAddedEventArgs MessageAddedEvent arguments. MessageCenterFieldProps Properties of MessageCenterField component. PointerMessageChangedEventArgs PointerMessageChangedEvent arguments. PointerMessageProps Properties of PointerMessage component. ToolAssistanceFieldProps Properties of ToolAssistanceField component. Beta Last Updated: 13 June, 2024