singrdk/base/Applications/Runtime/Full/System/ObsoleteAttribute.cs

// ==++==
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--==
//============================================================
//
// Class:  ObsoleteAttribute
//
// Purpose: Attribute for functions, etc that will be removed.
//
//===========================================================  
namespace System
{

    using System;
    // This attribute is attached to members that are not to be used any longer.
    // Message is some human readable explanation of what to use
    // Error indicates if the compiler should treat usage of such a method as an
    //   error. (this would be used if the actual implementation of the obsolete
    //   method's implementation had changed).
    //
    // Issue: do we need to be able to localize this message string?
    //
    //| <include path='docs/doc[@for="ObsoleteAttribute"]/*' />
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum |
        AttributeTargets.Interface | AttributeTargets.Constructor | AttributeTargets.Method| AttributeTargets.Property  | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Delegate
        , Inherited = false)]
    public sealed class ObsoleteAttribute : Attribute
    {
        private String _message;
        private bool _error;

        //| <include path='docs/doc[@for="ObsoleteAttribute.ObsoleteAttribute"]/*' />
        public ObsoleteAttribute ()
        {
            _message = null;
            _error = false;
        }

        //| <include path='docs/doc[@for="ObsoleteAttribute.ObsoleteAttribute1"]/*' />
        public ObsoleteAttribute (String message)
        {
            _message = message;
            _error = false;
        }

        //| <include path='docs/doc[@for="ObsoleteAttribute.ObsoleteAttribute2"]/*' />
        public ObsoleteAttribute (String message, bool error)
        {
            _message = message;
            _error = error;
        }

        //| <include path='docs/doc[@for="ObsoleteAttribute.Message"]/*' />
        public String Message {
            get {return _message;}
        }

        //| <include path='docs/doc[@for="ObsoleteAttribute.IsError"]/*' />
        public bool IsError{
            get {return _error;}
        }

    }
}