Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

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

@@ -0,0 +1,42 @@
+//------------------------------------------------------------------------------
+// <copyright file="ProfilePropertyNameValidator.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration
+{
+    using System;
+    using System.Xml;
+    using System.Configuration;
+    using System.Collections.Specialized;
+    using System.Collections;
+    using System.IO;
+    using System.Text;
+    using System.Web.Util;
+
+    internal sealed class ProfilePropertyNameValidator : ConfigurationValidatorBase
+    {
+        public override bool CanValidate(Type type) {
+            return (type == typeof(string));
+        }
+        public override void Validate(object value) {
+            if (value == null) {
+                throw new ArgumentNullException("value");
+            }
+            
+            string s = value as string;
+            if (s != null) {
+                s = s.Trim();
+            }
+            if (string.IsNullOrEmpty(s)) {
+                throw new ArgumentException(SR.GetString(SR.Profile_name_can_not_be_empty));
+            }
+
+            if (s.Contains(".")) {
+                throw new ArgumentException(SR.GetString(SR.Profile_name_can_not_contain_period));
+            }
+        }
+        internal static ProfilePropertyNameValidator SingletonInstance = new ProfilePropertyNameValidator();
+    }
+}