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// 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
{
}
}
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