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Page.RegisterRequiresViewStateEncryption Method

Registers a control with the page as one requiring view-state encryption.

Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)

public:
void RegisterRequiresViewStateEncryption ()
public void RegisterRequiresViewStateEncryption ()
public function RegisterRequiresViewStateEncryption ()
Not applicable.

Exception typeCondition

InvalidOperationException

The RegisterRequiresViewStateEncryption method must be called before or during the page PreRenderphase in the page life cycle.

If you are developing a custom control that deals with potentially sensitive information, call the RegisterRequiresViewStateEncryption method to register the control with the page and ensure view state for the control is encrypted.

The entire page state will be encrypted if the ViewStateEncryptionMode is set to Auto or Always.

The following code example demonstrates setting the view-state encryption mode for a Page object and requesting encryption of the view state through RegisterRequiresViewStateEncryption. In this example, view state will be encrypted when customer information is retrieved from a database.

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

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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