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Login.OnLoggedIn Method

.NET Framework 4

Raises the LoggedIn event after the user logs in to the Web site and has been authenticated.

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

'Declaration
Protected Overridable Sub OnLoggedIn ( _
	e As EventArgs _
)

Parameters

e: Type: System.EventArgs
A EventArgs that contains the event data.

Remarks

The OnLoggedIn method raises the LoggedIn event. Use the LoggedIn event to provide additional processing, such as accessing per-user data, after the user is authenticated.

Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

The OnLoggedIn method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When overriding OnLoggedIn in a derived class, be sure to call the base class's OnLoggedIn method so that registered delegates receive the event.

Examples

The following code example uses the LoggedIn event to call a site-specific method that keeps a record of user logins.


<%@ page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    ' This custom Login control uses a site-specific method
    ' to record the current date and time when users are 
    ' authenticated at the site.
    Class CustomLogin
        Inherits Login

        Private Sub SiteSpecificUserLoggingMethod(ByVal UserName As String)
            ' Insert code to record the current date and time
            ' when this user was authenticated at the site.
        End Sub

        Overrides Protected Sub OnLoggedIn(ByVal e As EventArgs)
            SiteSpecificUserLoggingMethod(UserName)
        End Sub
    End Class

    ' Add the custom login control to the page.
    Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        Dim loginControl As New CustomLogin

        loginControl.ID = "loginControl"

        PlaceHolder1.Controls.Add(loginControl)
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
<form id="form1" runat="server">
    <asp:placeholder id="Placeholder1" runat="Server"></asp:placeholder>
</form>
</body>
</html>

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

System.Web.UI.WebControls Namespace

Other Resources

ASP.NET Login Controls Overview

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