58 lines
2.2 KiB
C#
58 lines
2.2 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="HiddenFieldPersister.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI {
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using System;
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using System.Collections;
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using System.Collections.Specialized;
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using System.IO;
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using System.Text;
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using System.Security.Permissions;
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using System.Web.Security.Cryptography;
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public class HiddenFieldPageStatePersister : PageStatePersister {
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public HiddenFieldPageStatePersister(Page page) : base (page) {
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}
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public override void Load() {
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NameValueCollection requestValueCollection = Page.RequestValueCollection;
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if (requestValueCollection == null) {
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return;
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}
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string viewStateString = null;
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try {
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viewStateString = Page.RequestViewStateString;
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// VSWhidbey 160556
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if (!String.IsNullOrEmpty(viewStateString) || !String.IsNullOrEmpty(Page.ViewStateUserKey)) {
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Pair combinedState = (Pair)Util.DeserializeWithAssert(StateFormatter2, viewStateString, Purpose.WebForms_HiddenFieldPageStatePersister_ClientState);
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ViewState = combinedState.First;
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ControlState = combinedState.Second;
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}
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}
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catch (Exception e) {
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// throw if this is a wrapped ViewStateException -- mac validation failed
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if (e.InnerException is ViewStateException) {
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throw;
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}
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ViewStateException.ThrowViewStateError(e, viewStateString);
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}
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}
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/// <devdoc>
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/// To be supplied.
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/// </devdoc>
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public override void Save() {
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if (ViewState != null || ControlState != null) {
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Page.ClientState = Util.SerializeWithAssert(StateFormatter2, new Pair(ViewState, ControlState), Purpose.WebForms_HiddenFieldPageStatePersister_ClientState);
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}
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}
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}
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}
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