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LoginStatus.OnPreRender Method

Determines whether a user is logged in, and gets the URL of the login page.

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

'Declaration
Protected Friend Overrides Sub OnPreRender ( _
	e As EventArgs _
)

Parameters

e
Type: System.EventArgs
An EventArgs containing the event data.

The OnPreRender method determines whether the user is logged in by examining the IsAuthenticated property of the Page object's Request property. If the user is logged in, the LogoutText or LogoutImageUrl property is used to render the control. If the user is not logged in, the LoginText or LoginImageUrl property is used to render the control.

For more information about handling events, see Events and Delegates.

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

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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.

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