Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/Configuration/VersionValidator.cs

@@ -0,0 +1,32 @@
+//------------------------------------------------------------------------------
+// <copyright file="VersionValidator.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+    using System;
+    using System.Configuration;
+
+    internal sealed class VersionValidator : ConfigurationValidatorBase {
+        private readonly Version _minimumVersion;
+
+        public VersionValidator(Version minimumVersion) {
+            _minimumVersion = minimumVersion;
+        }
+
+        public override bool CanValidate(Type type) {
+            return typeof(Version).Equals(type);
+        }
+
+        public override void Validate(object value) {
+            if (value == null) {
+                throw new ArgumentNullException("value");
+            }
+            if (((Version)value) < _minimumVersion) {
+                throw new ArgumentOutOfRangeException("value", 
+                    SR.GetString(SR.Config_control_rendering_compatibility_version_is_less_than_minimum_version));
+            }
+        }
+    }
+}