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LoginStatus.OnPreRender Method

.NET Framework 4.5

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)

abstract OnPreRender : 
        e:EventArgs -> unit  
override OnPreRender : 
        e:EventArgs -> unit

Parameters

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

Remarks

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.

Version Information

.NET Framework

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

Platforms

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.

Reference

LoginStatus Class

System.Web.UI.WebControls Namespace

Other Resources

ASP.NET Login Controls Overview

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