Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.ComponentModel.DataAnnotations/DataAnnotations/ScaffoldAttribute.cs

@@ -0,0 +1,25 @@
+#if !SILVERLIGHT
+using System.Diagnostics.CodeAnalysis;
+
+namespace System.ComponentModel.DataAnnotations {
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false)]
+    [SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes", Justification = "We want users to be able to extend this class")]
+    public class ScaffoldColumnAttribute : Attribute {
+        public bool Scaffold { get; private set; }
+
+        public ScaffoldColumnAttribute(bool scaffold) {
+            Scaffold = scaffold;
+        }
+    }
+
+    [AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
+    [SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes", Justification = "We want users to be able to extend this class")]
+    public class ScaffoldTableAttribute : Attribute {
+        public bool Scaffold { get; private set; }
+
+        public ScaffoldTableAttribute(bool scaffold) {
+            Scaffold = scaffold;
+        }
+    }
+}
+#endif