Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/ModelBinding/ExtensibleModelBinderAttribute.cs

@@ -0,0 +1,22 @@
+namespace System.Web.ModelBinding {
+    using System;
+
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface, AllowMultiple = false, Inherited = true)]
+    public sealed class ExtensibleModelBinderAttribute : Attribute {
+
+        public ExtensibleModelBinderAttribute(Type binderType) {
+            BinderType = binderType;
+        }
+
+        public Type BinderType {
+            get;
+            private set;
+        }
+
+        public bool SuppressPrefixCheck {
+            get;
+            set;
+        }
+
+    }
+}