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//------------------------------------------------------------------------------
// <copyright file="PageStatePersister.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI {
using System.Collections;
public abstract class PageStatePersister {
private Page _page;
private object _viewState;
private object _controlState;
private IStateFormatter2 _stateFormatter;
protected PageStatePersister (Page page) {
if (page == null) {
throw new ArgumentNullException("page", SR.GetString(SR.PageStatePersister_PageCannotBeNull));
}
_page = page;
}
public object ControlState {
get {
return _controlState;
}
set {
_controlState = value;
}
}
/// <devdoc>
/// Provides the formatter used to serialize and deserialize the object graph representing the
/// state to be persisted.
/// </devdoc>
protected IStateFormatter StateFormatter {
get { return StateFormatter2; }
}
internal IStateFormatter2 StateFormatter2 {
get {
if (_stateFormatter == null) {
_stateFormatter = Page.CreateStateFormatter();
}
return _stateFormatter;
}
}
protected Page Page {
get {
return _page;
}
set {
_page = value;
}
}
public object ViewState {
get {
return _viewState;
}
set {
_viewState = value;
}
}
public abstract void Load();
public abstract void Save();
}
}
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