Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/StateItem.cs

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+//------------------------------------------------------------------------------
+// <copyright file="StateItem.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI {
+
+    using System;
+
+    /*
+     * The StateItem class * by the StateBag class.
+     * The StateItem has an object value, a dirty flag.
+     */
+
+    /// <devdoc>
+    /// <para>Represents an item that is saved in the <see cref='System.Web.UI.StateBag'/> class when view state 
+    ///    information is persisted between Web requests.</para>
+    /// </devdoc>
+    public sealed class StateItem {
+        private object      value;
+        private bool        isDirty;
+
+        /*
+         * Constructs a StateItem with an initial value.
+         */
+        internal StateItem(object initialValue) {
+            value = initialValue;
+            isDirty = false;
+        }
+
+        /*
+         * Property to indicate StateItem has been modified.
+         */
+
+        /// <devdoc>
+        /// <para>Indicates whether the <see cref='System.Web.UI.StateItem'/> object has been modified.</para>
+        /// </devdoc>
+        public bool IsDirty {
+            get {
+                return isDirty;
+            }
+            set {
+                isDirty = value;
+            }
+        }
+
+        /*
+         * Property to access the StateItem value.
+         */
+
+        /// <devdoc>
+        /// <para>Indicates the value of the item that is stored in the <see cref='System.Web.UI.StateBag'/> 
+        /// object.</para>
+        /// </devdoc>
+        public object Value {
+            get {
+                return value;
+            }
+            set {
+                this.value = value;
+            }
+        }
+    }
+}