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Page.RegisterHiddenField Method

NOTE: This API is now obsolete.

Allows server controls to automatically register a hidden field on the form. The field will be sent to the Page object when the HtmlForm server control is rendered.

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

public function RegisterHiddenField(
	hiddenFieldName : String, 
	hiddenFieldInitialValue : String
)

Parameters

hiddenFieldName
Type: System.String

The unique name of the hidden field to be rendered.

hiddenFieldInitialValue
Type: System.String

The value to be emitted in the hidden form.

The RegisterHiddenField method has been deprecated. Use the RegisterHiddenField method in the ClientScriptManager class.

The following code example uses the RegisterHiddenField method to help create ECMAScript code that is passed to the requesting browser. The name of the hidden field is set to myHiddenField and its value is set to "Welcome to Microsoft!" The RegisterStartupScript method calls the myHiddenField value when the user clicks a button on the page.

Security noteSecurity Note:

This example has a hidden field, which is a potential security threat. By default, you should validate the value of a hidden field as you would the value of a text box. ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 1.1, 1.0
Obsolete (compiler warning) in 3.5
Obsolete (compiler warning) in 3.5 SP1
Obsolete (compiler warning) in 3.0
Obsolete (compiler warning) in 3.0 SP1
Obsolete (compiler warning) in 3.0 SP2
Obsolete (compiler warning) in 2.0
Obsolete (compiler warning) in 2.0 SP1
Obsolete (compiler warning) in 2.0 SP2

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