Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web.DynamicData/DynamicData/ModelProviders/SimpleColumnProvider.cs

@@ -0,0 +1,33 @@
+namespace System.Web.DynamicData.ModelProviders {
+    using System;
+    using System.Collections.Generic;
+    using System.Linq;
+    using System.Text;
+    using System.ComponentModel;
+    using System.ComponentModel.DataAnnotations;
+    using System.Web.Resources;
+
+    internal sealed class SimpleColumnProvider : ColumnProvider {
+        public SimpleColumnProvider(TableProvider tableProvider, PropertyDescriptor propertyDescriptor)
+            : base(tableProvider) {
+            if (propertyDescriptor.PropertyType == null) {
+                throw new ArgumentNullException(DynamicDataResources.SimpleColumnProvider_ColumnTypeRequired);
+            }
+            Name = propertyDescriptor.Name;
+            ColumnType = propertyDescriptor.PropertyType;
+            IsPrimaryKey = propertyDescriptor.Attributes.OfType<KeyAttribute>().Any();
+            Nullable = Misc.TypeAllowsNull(ColumnType);
+            IsReadOnly = propertyDescriptor.IsReadOnly;
+            IsSortable = true;
+        }
+
+        public override AttributeCollection Attributes {
+            get {
+                if (!System.Web.UI.DataBinder.IsBindableType(ColumnType)) {
+                    return AttributeCollection.FromExisting(base.Attributes, new ScaffoldColumnAttribute(false));
+                }
+                return base.Attributes;
+            }
+        }
+    }
+}