Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Entity/System/Data/WebControls/ResourceDisplayNameAttribute.cs

@@ -0,0 +1,39 @@
+//------------------------------------------------------------------------------
+// <copyright file="ResourceDisplayNameAttribute.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//------------------------------------------------------------------------------
+using System;
+using System.ComponentModel;
+using System.Reflection;
+
+namespace System.Web.UI.WebControls
+{
+    [AttributeUsage(AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
+    internal sealed class ResourceDisplayNameAttribute : DisplayNameAttribute
+    {
+        private bool _resourceLoaded;
+        private readonly string _displayNameResourceName;
+
+        public ResourceDisplayNameAttribute(string displayNameResourceName)
+        {
+            _displayNameResourceName = displayNameResourceName;
+        }
+
+        public override string DisplayName
+        {
+            get
+            {
+                if (!_resourceLoaded)
+                {
+                    _resourceLoaded = true;
+                    DisplayNameValue = System.Web.UI.WebControlsRes.GetString(_displayNameResourceName);
+                }
+                return base.DisplayName;
+            }
+        }
+    }
+}