API Reference > ui-core > Settings > ProcessSettingsTabActivationEvent ProcessSettingsTabActivationEvent Class Beta Event class for onProcessSettingsTabActivation which is emitted when a new Tab needs to be activated. This allows the current settings page to save its settings before activating the new SettingTab. Extends BeUiEvent<ProcessSettingsTabActivationEventArgs> Methods Name Description constructor(): ProcessSettingsTabActivationEvent Inherited methods Name Inherited from Description addListener(listener: (args: ProcessSettingsTabActivationEventArgs) => void, scope?: any): () => void BeUiEvent Registers a Listener to be executed whenever this event is raised. addOnce(listener: (args: ProcessSettingsTabActivationEventArgs) => void, scope?: any): () => void BeUiEvent Registers a callback function to be executed only once when the event is raised. clear(): void BeUiEvent Clear all Listeners from this BeEvent. emit(args: ProcessSettingsTabActivationEventArgs): void BeUiEvent Raises event with single strongly typed argument. has(listener: (args: ProcessSettingsTabActivationEventArgs) => void, scope?: any): boolean BeUiEvent Determine whether this BeEvent has a specified listener registered. raiseEvent(...args: [args]): void BeUiEvent Raises the event by calling each registered listener with the supplied arguments. removeListener(listener: (args: ProcessSettingsTabActivationEventArgs) => void, scope?: any): boolean BeUiEvent Un-register a previously registered listener. Inherited properties Name Type Inherited from Description numberOfListeners Accessor ReadOnly number BeUiEvent The number of listeners currently subscribed to the event. Defined in ui/core/src/ui-core/settings/SettingsManager.tsx Line 52 Last Updated: 29 November, 2022