TSphinxConfig.OnListExternalProviders Event
Event used to choose which upstream providers are offered as interactive "Login with..." buttons on the login page, and in what order.
Remarks
The list passed in the event arguments is pre-seeded with the registered providers whose TSphinxExternalProvider.ShowInLoginPage is True. The handler may add provider names (including fully dynamic providers materialized by OnGetExternalProvider), remove names, or reorder them based on the client id and tenant. Each listed provider's display properties are then resolved through OnGetExternalProvider, so they are never specified here.
Syntax
Unit: Sphinx.Comp.Config
property TSphinxConfig.OnListExternalProviders: TListExternalProvidersEvent