Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Data.Entity/System/Data/EntityState.cs

@@ -0,0 +1,45 @@
+//---------------------------------------------------------------------
+// <copyright file="EntityState.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+namespace System.Data {
+    using System;
+    using System.ComponentModel.DataAnnotations;
+
+    /// <summary>
+    /// Describes state of an entity
+    /// </summary>
+    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1714:FlagsEnumsShouldHavePluralNames")]
+    [Flags]
+    [BindableType(IsBindable=false)]
+    public enum EntityState {
+        /// <summary>
+        /// The entity has been created but is not part of ObjectStateManager.
+        /// A entity is in this state immediately after it has been created and 
+        /// before it is added to a ObjectStateManager, or if it has been 
+        /// removed from a ObjectStateManager.
+        /// </summary>
+        Detached  = 0x00000001,
+        /// <summary>
+        /// The entity has not changed since AcceptChanges was last called.
+        /// </summary>
+        Unchanged = 0x00000002,
+        /// <summary>
+        /// The entity was added to a ObjectStateManager, and AcceptChanges has not been called.
+        /// </summary>
+        Added     = 0x00000004,
+        /// <summary>
+        /// The entity was deleted using the Delete method of the ObjectStateManager.
+        /// </summary>
+        Deleted   = 0x00000008,
+        /// <summary>
+        /// The entity was modified and AcceptChanges has not been called.
+        /// </summary>
+        Modified  = 0x00000010
+    }
+}