PageStatePersister.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / PageStatePersister.cs / 1 / PageStatePersister.cs
                        

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

namespace System.Web.UI { 
    using System.Collections; 
    using System.Security.Permissions;
 

    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public abstract class PageStatePersister { 

        private Page _page; 
        private object _viewState; 
        private object _controlState;
        private IStateFormatter _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;
            } 
        } 

        ///  
        /// Provides the formatter used to serialize and deserialize the object graph representing the
        /// state to be persisted.
        /// 
        protected IStateFormatter StateFormatter { 
            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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