Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

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

@@ -0,0 +1,16 @@
+namespace System.Web.Configuration {
+    using System;
+    using System.Configuration;
+
+    // Attribute form of 'RegexMatchTimeoutValidator'
+    [AttributeUsage(AttributeTargets.Property)]
+    internal sealed class RegexMatchTimeoutValidatorAttribute : ConfigurationValidatorAttribute {
+
+        public override ConfigurationValidatorBase ValidatorInstance {
+            get {
+                return new RegexMatchTimeoutValidator();
+            }
+        }
+
+    }
+}