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namespace GoloRoden.GuideToCSharp
{
    /// <summary>
    /// Represents a foo class.
    /// </summary>
    public class Foo : IDisposable
    {
        /// <summary>
        /// Contains, whether this instance has been
        /// disposed yet.
        /// </summary>
        private bool _isDisposed;

        /// <summary>
        /// Finalizes this instance.
        /// </summary>
        ~Foo()
        {
            // Dispose this instance.
            this.Dispose(false);
        }

        /// <summary>
        /// Disposes this instance.
        /// </summary>
        /// <param name="isDisposeByUser"><c>true</c> whether
        /// disposing is called by the user; <c>false</c>
        /// otherwise.</param>
        private void Dispose(bool isDisposeByUser)
        {
            // If the disposing is called by the user,
            // managed resources may be cleaned up, too.
            if (isDisposeByUser)
            {
                // TODO gr: Clean up any managed resources.
                //          2008-01-02
            }

            // TODO gr: Clean up any unmanaged resources.
            //          2008-01-02

            // Suppress execution of the finalizer for
            // this object.
            GC.SuppressFinalize(this);

            // Define this instance as disposed.
            this._isDisposed = true;
        }

        /// <summary>
        /// Dispose this instance.
        /// </summary>
        public void Dispose()
        {
            // If this instance has been disposed, throw an
            // exception.
            if (this._isDisposed)
            {
                throw new ObjectDisposedException(
                    this.ToString());
            }

            // Dispose this instance.
            this.Dispose(true);
        }
    }
}                    

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using (GoloRoden.GuideToCSharp.Foo foo = new GoloRoden.GuideToCSharp.Foo())
            {
                // TODO gr: Use the object.
                //          2008-01-02
            }