HiddenFieldPageStatePersister.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / HiddenFieldPageStatePersister.cs / 1305376 / HiddenFieldPageStatePersister.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI { 
    using System; 
    using System.Collections;
    using System.Collections.Specialized; 
    using System.IO;
    using System.Text;
    using System.Security.Permissions;
 
    public class HiddenFieldPageStatePersister : PageStatePersister {
        public HiddenFieldPageStatePersister(Page page) : base (page) { 
        } 

        public override void Load() { 
            NameValueCollection requestValueCollection = Page.RequestValueCollection;
            if (requestValueCollection == null) {
                return;
            } 

            string viewStateString = null; 
            try { 
                viewStateString = Page.RequestViewStateString;
 
                // VSWhidbey 160556
                if (!String.IsNullOrEmpty(viewStateString) || !String.IsNullOrEmpty(Page.ViewStateUserKey)) {
                    Pair combinedState = (Pair)Util.DeserializeWithAssert(StateFormatter, viewStateString);
                    ViewState = combinedState.First; 
                    ControlState = combinedState.Second;
                } 
            } 
            catch (Exception e) {
                // throw if this is a wrapped ViewStateException -- mac validation failed 
                if (e.InnerException is ViewStateException) {
                    throw;
                }
 
                ViewStateException.ThrowViewStateError(e, viewStateString);
            } 
        } 

 
        /// 
        ///     To be supplied.
        /// 
        public override void Save() { 
            if (ViewState != null || ControlState != null) {
                Page.ClientState = Util.SerializeWithAssert(StateFormatter, new Pair(ViewState, ControlState)); 
            } 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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