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CheckBox.SaveViewState Method

Saves the changes to the CheckBox view state since the time the page was posted back to the server.

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

protected override Object SaveViewState ()
protected Object SaveViewState ()
protected override function SaveViewState () : Object

Return Value

The object that contains the changes to the CheckBox view state; otherwise, if no view state is associated with the object, a null reference (Nothing in Visual Basic).

The SaveViewState method is used primarily by control developers.

View state is the accumulation of the values of a server control's properties. These values are automatically placed in the ViewState property for the server control, which is an instance of the StateBag class. This property's value is then persisted to a string object after the save-state stage of the server control's life cycle. For more information, see ASP.NET Page Life Cycle Overview.

When view state is saved, this string object is returned to the client as a variable that is stored in a hidden HTML input element. When you author custom server controls, you can improve efficiency by overriding the SaveViewState and modifying the ViewState property for your server control. For more information, see Developing Custom ASP.NET Server Controls and ASP.NET State Management.

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

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

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