//============================================================ // 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); }