1 files changed, 64 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Runtime/Serialization/SerializationAttributes.cs b/src/mscorlib/src/System/Runtime/Serialization/SerializationAttributes.cs
new file mode 100644
index 0000000000..27c5751cc6
--- /dev/null
+++ b/src/mscorlib/src/System/Runtime/Serialization/SerializationAttributes.cs
@@ -0,0 +1,64 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================
+**
+**
+**
+** Purpose: Various Attributes for Serialization 
+**
+**
+============================================================*/
+namespace System.Runtime.Serialization
+{
+    using System;
+    using System.Diagnostics.Contracts;
+    using System.Reflection;
+
+    [AttributeUsage(AttributeTargets.Field, Inherited=false)]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public sealed class OptionalFieldAttribute : Attribute 
+    {
+        int versionAdded = 1;
+        public OptionalFieldAttribute() { }
+        
+        public int VersionAdded 
+        {
+            get {
+                return this.versionAdded;
+            }
+            set {
+                if (value < 1)
+                    throw new ArgumentException(Environment.GetResourceString("Serialization_OptionalFieldVersionValue"));
+                Contract.EndContractBlock();
+                this.versionAdded = value;
+            }
+        }
+    }
+
+    [AttributeUsage(AttributeTargets.Method, Inherited=false)]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public sealed class OnSerializingAttribute : Attribute 
+    {
+    }
+
+    [AttributeUsage(AttributeTargets.Method, Inherited=false)]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public sealed class OnSerializedAttribute : Attribute 
+    {
+    }
+
+    [AttributeUsage(AttributeTargets.Method, Inherited=false)]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public sealed class OnDeserializingAttribute : Attribute 
+    {
+    }
+
+    [AttributeUsage(AttributeTargets.Method, Inherited=false)]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public sealed class OnDeserializedAttribute : Attribute 
+    {
+    }
+
+}