Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Extensions/Configuration/ConvertersCollection.cs

@@ -0,0 +1,95 @@
+//------------------------------------------------------------------------------
+// <copyright file="ConvertersCollection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+ 
+namespace System.Web.Configuration {
+    using System;
+    using System.Collections.Generic;
+    using System.Configuration;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Globalization;
+    using System.Web;
+    using System.Web.Compilation;
+    using System.Web.Resources;
+    using System.Web.Script.Serialization;
+    using System.Security;
+
+    [
+    ConfigurationCollection(typeof(Converter)),
+    SuppressMessage("Microsoft.Design", "CA1010:CollectionsShouldImplementGenericInterface",
+        Justification="Derives from legacy collection base class.  Base method IsReadOnly() " +
+                      "would clash with property ICollection<T>.IsReadOnly.")
+    ]
+    public class ConvertersCollection : ConfigurationElementCollection {
+
+        private static readonly ConfigurationPropertyCollection _properties =
+            new ConfigurationPropertyCollection();
+
+        public ConvertersCollection() {
+        }
+
+        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
+        protected override ConfigurationPropertyCollection Properties {
+            get {
+                return _properties;
+            }
+        }
+
+        public Converter this[int index] {
+            get {
+                return (Converter)BaseGet(index);
+            }
+            set {
+                if (BaseGet(index) != null) {
+                    BaseRemoveAt(index);
+                }
+
+                BaseAdd(index, value);
+            }
+        }
+
+
+        public void Add(Converter converter) {
+            BaseAdd(converter);
+        }
+
+        public void Remove(Converter converter) {
+            BaseRemove(GetElementKey(converter));
+        }
+
+        public void Clear() {
+            BaseClear();
+        }
+
+        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
+        protected override ConfigurationElement CreateNewElement() {
+            return new Converter();
+        }
+
+        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
+        protected override Object GetElementKey(ConfigurationElement element) {
+            return ((Converter)element).Name;
+        }
+
+        [SecuritySafeCritical]
+        internal JavaScriptConverter[] CreateConverters() {
+            List<JavaScriptConverter> list = new List<JavaScriptConverter>();
+            foreach (Converter converter in this) {
+                Type t = BuildManager.GetType(converter.Type, false /*throwOnError*/);
+
+                if (t == null) {
+                    throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ConvertersCollection_UnknownType, converter.Type));
+                }
+
+                if (!typeof(JavaScriptConverter).IsAssignableFrom(t)) {
+                    throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ConvertersCollection_NotJavaScriptConverter, t.Name));
+                }
+
+                list.Add((JavaScriptConverter)Activator.CreateInstance(t));
+            }
+            return list.ToArray();
+        }
+    }
+}