Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Configuration/SessionPageStateSection.cs

@@ -0,0 +1,59 @@
+//------------------------------------------------------------------------------
+// <copyright file="SessionPageStateSection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+    using System;
+    using System.Xml;
+    using System.Configuration;
+    using System.Collections.Specialized;
+    using System.Collections;
+    using System.Globalization;
+    using System.IO;
+    using System.Text;
+    using System.ComponentModel;
+    using System.Web.Util;
+    using System.Diagnostics;
+    using System.Security.Permissions;
+
+    public sealed class SessionPageStateSection : ConfigurationSection {
+        private static ConfigurationPropertyCollection _properties;
+
+        public const int DefaultHistorySize = 9; // 
+
+        #region Property Declarations
+        private static readonly ConfigurationProperty _propHistorySize =
+            new ConfigurationProperty("historySize",
+                                        typeof(int),
+                                        DefaultHistorySize,
+                                        null,
+                                        StdValidatorsAndConverters.NonZeroPositiveIntegerValidator,
+                                        ConfigurationPropertyOptions.None);
+        #endregion
+
+        static SessionPageStateSection() {
+            // Property initialization
+            _properties = new ConfigurationPropertyCollection();
+            _properties.Add(_propHistorySize);
+        }
+
+        protected override ConfigurationPropertyCollection Properties {
+            get {
+                return _properties;
+            }
+        }
+
+        [ConfigurationProperty("historySize", DefaultValue = DefaultHistorySize)]
+        [IntegerValidator(MinValue = 1)]
+        public int HistorySize {
+            get {
+                return (int)base[_propHistorySize];
+            }
+            set {
+                base[_propHistorySize] = value;
+            }
+        }
+    }
+}