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WebControl.SaveViewState Method

Saves any state that was modified after the TrackViewState method was invoked.

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

An object that contains the current view state of the control; otherwise, if there is no view state associated with the control, a null reference (Nothing in Visual Basic).

The SaveViewState method is used primarily by control developers.

View state is the cumulative values of the properties for a server control. These values are placed automatically in the ViewState property for the server control, which is an instance of the StateBag class. The ViewState property value is then persisted to a string object after the save state stage of the life cycle for the server control. 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 method and modifying the ViewState property for your server control. For more information, see 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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