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Login.Authenticate Event

Occurs when a user is authenticated.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

member Authenticate : IEvent<AuthenticateEventHandler,
    AuthenticateEventArgs>
<asp:Login OnAuthenticate="AuthenticateEventHandler" />

The Authenticate event is raised when a user uses the Login control to log in to a Web site. Custom authentication schemes can use the Authenticate event to authenticate users.

NoteNote

When a user uses the Login control to log in to a Web site, all data in the view state and all post data is lost. Do not perform actions in the Authenticate event that rely on the view state.

For more information about handling events, see Handling and Raising Events.

Notes to Implementers

Custom authentication schemes should set the Authenticated property to true to indicate that a user has been authenticated.

When a user submits his or her login information, the Login control first raises the LoggingIn event, then the Authenticate event, and finally the LoggedIn event.

The following code example uses the Authenticate event to call site-specific custom authentication code.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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