Imported Upstream version 4.2.0.179

Former-commit-id: 4610231f55806d2a05ed69e5ff3faa7336cc1479

external/referencesource/System.Configuration/System/Configuration/NameValueConfigurationElement.cs

@@ -0,0 +1,91 @@
+//------------------------------------------------------------------------------
+// <copyright file="NameValueConfigurationElement.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+/*
+ * ImmutableCollections
+ *
+ * Copyright (c) 2004 Microsoft Corporation
+ */
+
+using System;
+using System.Collections;
+using System.Collections.Specialized;
+using System.Net;
+using System.Configuration;
+
+//
+// This file contains configuration collections that are used by multiple sections
+//
+namespace System.Configuration
+{
+
+    public sealed class NameValueConfigurationElement : ConfigurationElement
+    {
+        private static ConfigurationPropertyCollection _properties;
+        private static readonly ConfigurationProperty _propName =
+            new ConfigurationProperty("name", typeof(string), String.Empty, ConfigurationPropertyOptions.IsKey);
+        private static readonly ConfigurationProperty _propValue =
+            new ConfigurationProperty("value", typeof(string), String.Empty, ConfigurationPropertyOptions.None);
+
+        static NameValueConfigurationElement()
+        {
+            // Property initialization
+            _properties = new ConfigurationPropertyCollection();
+            _properties.Add(_propName);
+            _properties.Add(_propValue);
+        }
+        
+        protected internal override ConfigurationPropertyCollection Properties
+        {
+            get
+            {
+                return _properties;
+            }
+        }
+
+        //
+        // Constructor
+        //
+        internal NameValueConfigurationElement()
+        {
+        }
+        
+        public NameValueConfigurationElement(string name, string value) 
+        {
+            base[_propName] = name;
+            base[_propValue] = value;
+        }
+
+        //
+        // Properties
+        //
+
+        //
+        // ConfigurationPropertyOptions.IsKey="true"
+        //
+        [ConfigurationProperty("name", IsKey = true, DefaultValue = "")]
+        public string Name
+        {
+            get
+            {
+                return (string)base[_propName];
+            }
+        }
+
+        [ConfigurationProperty("value", DefaultValue = "")]
+        public string Value
+        {
+            get
+            {
+                return (string)base[_propValue];
+            }
+            set
+            {
+                base[_propValue] = value;
+            }
+        }
+    }
+}