/// <summary>
        /// Predicate delegate that returns a value indicating if the supplied <see cref="ISyndicationExtension"/> 
        /// represents the same <see cref="Type"/> as this <see cref="SyndicationExtension"/>.
        /// </summary>
        /// <param name="extension">The <see cref="ISyndicationExtension"/> to be compared.</param>
        /// <returns><b>true</b> if the <paramref name="extension"/> is the same <see cref="Type"/> as this <see cref="SyndicationExtension"/>; otherwise, <b>false</b>.</returns>
        /// <exception cref="ArgumentNullException">The <paramref name="extension"/> is a null reference (Nothing in Visual Basic).</exception>
        public static bool MatchByType(ISyndicationExtension extension)
        {
            //------------------------------------------------------------
            //	Validate parameter
            //------------------------------------------------------------
            Guard.ArgumentNotNull(extension, "extension");

            //------------------------------------------------------------
            //	Determine if search condition was met
            //------------------------------------------------------------
            return extension.GetType() == typeof (SDataHttpExtension);
        }

        /// <summary>
        /// Removes the supplied <see cref="ISyndicationExtension"/> from the current instance's <see cref="IExtensibleSyndicationObject.Extensions"/> collection.
        /// </summary>
        /// <param name="extension">The <see cref="ISyndicationExtension"/> to be removed.</param>
        /// <returns><b>true</b> if the <see cref="ISyndicationExtension"/> was removed from the <see cref="IExtensibleSyndicationObject.Extensions"/> collection, otherwise <b>false</b>.</returns>
        /// <remarks>
        ///     If the <see cref="Extensions"/> collection of the current instance does not contain the specified <see cref="ISyndicationExtension"/>, will return <b>false</b>.
        /// </remarks>
        /// <exception cref="ArgumentNullException">The <paramref name="extension"/> is a null reference (Nothing in Visual Basic).</exception>
        public bool RemoveExtension(ISyndicationExtension extension)
        {
            //------------------------------------------------------------
            //	Local members
            //------------------------------------------------------------
            bool wasRemoved = false;

            //------------------------------------------------------------
            //	Validate parameter
            //------------------------------------------------------------
            Guard.ArgumentNotNull(extension, "extension");

            //------------------------------------------------------------
            //	Remove syndication extension from collection
            //------------------------------------------------------------
            if (((Collection<ISyndicationExtension>)this.Extensions).Contains(extension))
            {
                ((Collection<ISyndicationExtension>)this.Extensions).Remove(extension);
                wasRemoved  = true;
            }

            return wasRemoved;
        }

        /// <summary>
        /// Adds the supplied <see cref="ISyndicationExtension"/> to the current instance's <see cref="IExtensibleSyndicationObject.Extensions"/> collection.
        /// </summary>
        /// <param name="extension">The <see cref="ISyndicationExtension"/> to be added.</param>
        /// <returns><b>true</b> if the <see cref="ISyndicationExtension"/> was added to the <see cref="IExtensibleSyndicationObject.Extensions"/> collection, otherwise <b>false</b>.</returns>
        /// <exception cref="ArgumentNullException">The <paramref name="extension"/> is a null reference (Nothing in Visual Basic).</exception>
        public bool AddExtension(ISyndicationExtension extension)
        {
            //------------------------------------------------------------
            //	Local members
            //------------------------------------------------------------
            bool wasAdded   = false;

            //------------------------------------------------------------
            //	Validate parameter
            //------------------------------------------------------------
            Guard.ArgumentNotNull(extension, "extension");

            //------------------------------------------------------------
            //	Add syndication extension to collection
            //------------------------------------------------------------
            ((Collection<ISyndicationExtension>)this.Extensions).Add(extension);
            wasAdded    = true;

            return wasAdded;
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="SyndicationExtensionLoadedEventArgs"/> class using the supplied <see cref="IXPathNavigable"/> and <see cref="ISyndicationExtension"/>.
        /// </summary>
        /// <param name="data">A <see cref="IXPathNavigable"/> object that represents the XML data that was used to load the syndication extension.</param>
        /// <param name="extension">
        ///     A <see cref="ISyndicationExtension"/> that represents the syndication extension after the load operation completed.
        /// </param>
        /// <exception cref="ArgumentNullException">The <paramref name="data"/> is a null reference (Nothing in Visual Basic).</exception>
        /// <exception cref="ArgumentNullException">The <paramref name="extension"/> is a null reference (Nothing in Visual Basic).</exception>
        public SyndicationExtensionLoadedEventArgs(IXPathNavigable data, ISyndicationExtension extension)
            : this(data)
        {
            //------------------------------------------------------------
            //	Validate parameters
            //------------------------------------------------------------
            Guard.ArgumentNotNull(extension, "extension");

            eventExtension  = extension;
        }

        /// <summary>
        /// Predicate delegate that returns a value indicating if the supplied <see cref="ISyndicationExtension"/> 
        /// represents the same <see cref="Type"/> as this <see cref="SyndicationExtension"/>.
        /// </summary>
        /// <param name="extension">The <see cref="ISyndicationExtension"/> to be compared.</param>
        /// <returns><b>true</b> if the <paramref name="extension"/> is the same <see cref="Type"/> as this <see cref="SyndicationExtension"/>; otherwise, <b>false</b>.</returns>
        /// <exception cref="ArgumentNullException">The <paramref name="extension"/> is a null reference (Nothing in Visual Basic).</exception>
        public static bool MatchByType(ISyndicationExtension extension)
        {
            //------------------------------------------------------------
            //	Validate parameter
            //------------------------------------------------------------
            Guard.ArgumentNotNull(extension, "extension");

            //------------------------------------------------------------
            //	Determine if search condition was met
            //------------------------------------------------------------
            if (extension.GetType() == typeof(FeedRankSyndicationExtension))
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// Predicate delegate that returns a value indicating if the supplied <see cref="ISyndicationExtension"/> 
        /// represents the same <see cref="Type"/> as this <see cref="MyCustomSyndicationExtension"/>.
        /// </summary>
        /// <param name="extension">The <see cref="ISyndicationExtension"/> to be compared.</param>
        /// <returns><b>true</b> if the <paramref name="extension"/> is the same <see cref="Type"/> as this <see cref="MyCustomSyndicationExtension"/>; otherwise, <b>false</b>.</returns>
        /// <exception cref="ArgumentNullException">The <paramref name="extension"/> is a null reference (Nothing in Visual Basic).</exception>
        public static bool MatchByType(ISyndicationExtension extension)
        {
            Guard.ArgumentNotNull(extension, "extension");

            //------------------------------------------------------------
            //	Determine if search condition was met
            //------------------------------------------------------------
            if (extension.GetType() == typeof(MyCustomSyndicationExtension))
            {
                return true;
            }
            else
            {
                return false;
            }
        }