Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebControls/DataKeyCollection.cs

@@ -0,0 +1,99 @@
+//------------------------------------------------------------------------------
+// <copyright file="DataKeyCollection.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.Collections;
+
+    /// <devdoc>
+    /// </devdoc>
+    public sealed class DataKeyCollection : ICollection {
+
+        private ArrayList keys;
+ 
+
+        /// <devdoc>
+        /// <para>Initializes a new instance of the <see cref='System.Web.UI.WebControls.DataKeyCollection'/> class.</para>
+        /// </devdoc>
+        public DataKeyCollection(ArrayList keys) {
+            this.keys = keys;
+        }
+       
+
+        /// <devdoc>
+        ///    <para>Gets the number of objects in the collection. This property is read-only.</para>
+        /// </devdoc>
+        public int Count {
+            get {
+                return keys.Count;
+            }
+        }
+
+
+        /// <devdoc>
+        /// <para>Gets the value that specifies whether items in the <see cref='System.Web.UI.WebControls.DataKeyCollection'/> can be 
+        ///    modified. This property is read-only.</para>
+        /// </devdoc>
+        public bool IsReadOnly {
+            get {
+                return false;
+            }
+        }
+
+
+        /// <devdoc>
+        /// <para>Gets a value that indicates whether the <see cref='System.Web.UI.WebControls.DataKeyCollection'/> is 
+        ///    thread-safe. This property is read-only.</para>
+        /// </devdoc>
+        public bool IsSynchronized {
+            get {
+                return false;
+            }
+        }
+
+
+        /// <devdoc>
+        ///    <para>Gets the object used to synchronize access to the collection. This property is read-only. </para>
+        /// </devdoc>
+        public object SyncRoot {
+            get {
+                return this;
+            }
+        }
+
+
+        /// <devdoc>
+        /// <para>Gets a <see cref='System.Data.DataKey' qualify='true'/> at the specified index in the collection. This property is read-only.</para>
+        /// </devdoc>
+        public object this[int index] {
+            get {
+                return keys[index];
+            }
+        }
+
+
+
+        /// <devdoc>
+        /// <para>Copies the contents of the entire collection into an <see cref='System.Array' qualify='true'/> appending at 
+        ///    the specified index of the <see cref='System.Array' qualify='true'/>.</para>
+        /// </devdoc>
+        public void CopyTo(Array array, int index) {
+            for (IEnumerator e = this.GetEnumerator(); e.MoveNext();)
+                array.SetValue(e.Current, index++);
+        }
+
+
+        /// <devdoc>
+        /// <para>Creates an enumerator for the <see cref='System.Web.UI.WebControls.DataKeyCollection'/> used to iterate 
+        ///    through the collection.</para>
+        /// </devdoc>
+        public IEnumerator GetEnumerator() {
+            return keys.GetEnumerator();
+        }
+    }
+}
+