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Parameter.SaveViewState Method

Saves the changes to the Parameter object's 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 virtual Object SaveViewState ()
protected Object SaveViewState ()
protected function SaveViewState () : Object
Not applicable.

Return Value

The Object that contains the changes to the Parameter view state. If there is no view state associated with the object, this method returns a null reference (Nothing in Visual Basic).

This 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 server control's ViewState property, 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 life cycle.

When view state is saved, this string object is returned to the client as a variable that is stored in an HTML hidden element. When you author custom server controls, you can improve efficiency by overriding this method and modifying your server control's ViewState property.

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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