Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web.Extensions/ui/ClientUrlResolverWrapper.cs

@@ -0,0 +1,38 @@
+//------------------------------------------------------------------------------
+// <copyright file="ClientUrlResolverWrapper.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+ 
+namespace System.Web.UI {
+    using System;
+    using System.Web.UI;
+
+    internal sealed class ClientUrlResolverWrapper : IClientUrlResolver {
+        private readonly Control _control;
+
+        public ClientUrlResolverWrapper(Control control) {
+            _control = control;
+        }
+
+        #region IClientUrlResolver Members
+        // DevDiv Bugs 197242: AppRelativeTemplateSourceDirectory needed for
+        // CompositeReference url resolution
+        string IClientUrlResolver.AppRelativeTemplateSourceDirectory {
+            get {
+                return _control.AppRelativeTemplateSourceDirectory;
+            }
+        }
+
+        string IClientUrlResolver.ResolveClientUrl(string relativeUrl) {
+            IClientUrlResolver resolver = _control as IClientUrlResolver;
+            if (resolver != null) {
+                return resolver.ResolveClientUrl(relativeUrl);
+            }
+            else {
+                return _control.ResolveClientUrl(relativeUrl);
+            }
+        }
+        #endregion
+    }
+}