Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

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+//------------------------------------------------------------------------------
+// <copyright file="ReadOnlyHierarchicalDataSourceView.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.Collections;
+    using System.Web;
+    using System.Web.UI;
+    using System.Web.Util;
+
+
+    /// <devdoc>
+    /// This class is used by ReadOnlyHierarchicalDataSource to represent an
+    /// individual view of a generic hierarchical data source.
+    /// </devdoc>
+    internal sealed class ReadOnlyHierarchicalDataSourceView : HierarchicalDataSourceView {
+
+        private IHierarchicalEnumerable _dataSource;
+
+        public ReadOnlyHierarchicalDataSourceView(IHierarchicalEnumerable dataSource) {
+            _dataSource = dataSource;
+        }
+
+        public override IHierarchicalEnumerable Select() {
+            return _dataSource;
+        }
+    }
+}
+