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IStateManager.SaveViewState Method

When implemented by a class, saves the changes to a server control's view state to an Object.

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

Function SaveViewState As Object

Return Value

Type: System.Object
The Object that contains the view state changes.

        ' Implement the SaveViewState method. If the StateBag 
        ' that stores the MyItem class's view state contains 
        ' a value for the message property and if the value 
        ' has changed since the TrackViewState method was last  
        ' called, all view state for this class is deleted,  
        ' using the StateBag.Clear method,and the new value is added. 
        Function SaveViewState() As Object Implements IStateManager.SaveViewState
            ' Check whether the message property exists in  
            ' the ViewState property, and if it does, check 
            ' whether it has changed since the most recent 
            ' TrackViewState method call. 
            If Not CType(_viewstate, IDictionary).Contains("message") OrElse _viewstate.IsItemDirty("message") Then
                ' Add the _message property to the StateBag.
                _viewstate.Add("message", _message)
            End If 
            Return CType(_viewstate, IStateManager).SaveViewState()
        End Function 'IStateManager.SaveViewState

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
© 2015 Microsoft