예제 #1
0
        //============================================================
        //	ICOMPARABLE IMPLEMENTATION
        //============================================================
        #region CompareTo(object obj)
        /// <summary>
        /// Compares the current instance with another object of the same type.
        /// </summary>
        /// <param name="obj">An object to compare with this instance.</param>
        /// <returns>A 32-bit signed integer that indicates the relative order of the objects being compared.</returns>
        /// <exception cref="ArgumentException">The <paramref name="obj"/> is not the expected <see cref="Type"/>.</exception>
        public int CompareTo(object obj)
        {
            //------------------------------------------------------------
            //	If target is a null reference, instance is greater
            //------------------------------------------------------------
            if (obj == null)
            {
                return(1);
            }

            //------------------------------------------------------------
            //	Determine comparison result using property state of objects
            //------------------------------------------------------------
            SimpleListGroup value = obj as SimpleListGroup;

            if (value != null)
            {
                int result = String.Compare(this.Element, value.Element, StringComparison.OrdinalIgnoreCase);
                result = result | String.Compare(this.Label, value.Label, StringComparison.OrdinalIgnoreCase);
                result = result | Uri.Compare(this.Namespace, value.Namespace, UriComponents.AbsoluteUri, UriFormat.SafeUnescaped, StringComparison.Ordinal);

                return(result);
            }
            else
            {
                throw new ArgumentException(String.Format(null, "obj is not of type {0}, type was found to be '{1}'.", this.GetType().FullName, obj.GetType().FullName), "obj");
            }
        }
        //============================================================
        //	PUBLIC METHODS
        //============================================================
        #region Load(XPathNavigator source, XmlNamespaceManager manager)
        /// <summary>
        /// Initializes the syndication extension context using the supplied <see cref="XPathNavigator"/>.
        /// </summary>
        /// <param name="source">The <b>XPathNavigator</b> used to load this <see cref="SimpleListSyndicationExtensionContext"/>.</param>
        /// <param name="manager">The <see cref="XmlNamespaceManager"/> object used to resolve prefixed syndication extension elements and attributes.</param>
        /// <returns><b>true</b> if the <see cref="SimpleListSyndicationExtensionContext"/> was able to be initialized using the supplied <paramref name="source"/>; otherwise <b>false</b>.</returns>
        /// <exception cref="ArgumentNullException">The <paramref name="source"/> is a null reference (Nothing in Visual Basic).</exception>
        /// <exception cref="ArgumentNullException">The <paramref name="manager"/> is a null reference (Nothing in Visual Basic).</exception>
        public bool Load(XPathNavigator source, XmlNamespaceManager manager)
        {
            //------------------------------------------------------------
            //	Local members
            //------------------------------------------------------------
            bool wasLoaded = false;

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

            //------------------------------------------------------------
            //	Attempt to extract syndication extension information
            //------------------------------------------------------------
            if (source.HasChildren)
            {
                XPathNavigator treatAsNavigator         = source.SelectSingleNode("cf:treatAs", manager);
                XPathNavigator listInformationNavigator = source.SelectSingleNode("cf:listinfo", manager);

                if (treatAsNavigator != null && String.Compare(treatAsNavigator.Value, "list", StringComparison.OrdinalIgnoreCase) == 0)
                {
                    this.TreatAsList = true;
                    wasLoaded        = true;
                }

                if (listInformationNavigator != null && listInformationNavigator.HasChildren)
                {
                    XPathNodeIterator sortIterator  = source.Select("cf:sort", manager);
                    XPathNodeIterator groupIterator = source.Select("cf:group", manager);

                    if (sortIterator != null && sortIterator.Count > 0)
                    {
                        while (sortIterator.MoveNext())
                        {
                            SimpleListSort sort = new SimpleListSort();
                            if (sort.Load(sortIterator.Current))
                            {
                                this.Sorting.Add(sort);
                                wasLoaded = true;
                            }
                        }
                    }

                    if (groupIterator != null && groupIterator.Count > 0)
                    {
                        while (groupIterator.MoveNext())
                        {
                            SimpleListGroup group = new SimpleListGroup();
                            if (group.Load(groupIterator.Current))
                            {
                                this.Grouping.Add(group);
                                wasLoaded = true;
                            }
                        }
                    }
                }
            }

            return(wasLoaded);
        }