protected override void InsertItem(int index, XamlPropertyValue item) { XamlPropertyInfo info = property.propertyInfo; object collection = info.GetValue(property.ParentObject.Instance); if (!CollectionSupport.TryInsert(info.ReturnType, collection, item, index)) { CollectionSupport.AddToCollection(info.ReturnType, collection, item); } item.ParentProperty = property; property.InsertNodeInCollection(item.GetNodeForCollection(), index); base.InsertItem(index, item); if (CollectionChanged != null) { CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, item, index)); } }
void ParseObjectChildElementAsPropertyElement(XamlObject obj, XmlElement element, XamlPropertyInfo defaultProperty) { Debug.Assert(element.LocalName.Contains(".")); // this is a element property syntax XamlPropertyInfo propertyInfo = GetPropertyInfo(settings.TypeFinder, obj.Instance, obj.ElementType, element.NamespaceURI, element.LocalName); bool valueWasSet = false; object collectionInstance = null; bool isElementChildACollectionForProperty = false; XamlProperty collectionProperty = null; if (propertyInfo.IsCollection) { if (defaultProperty != null && defaultProperty.FullyQualifiedName == propertyInfo.FullyQualifiedName) { foreach (XamlProperty existing in obj.Properties) { if (existing.propertyInfo == defaultProperty) { collectionProperty = existing; break; } } } if (collectionProperty == null) { obj.AddProperty(collectionProperty = new XamlProperty(obj, propertyInfo)); } isElementChildACollectionForProperty = IsElementChildACollectionForProperty(settings.TypeFinder, element, propertyInfo); if (isElementChildACollectionForProperty) { collectionProperty.ParserSetPropertyElement((XmlElement)element.ChildNodes.Cast <XmlNode>() .Where(x => !(x is XmlWhitespace)) .First()); } else { collectionInstance = collectionProperty.propertyInfo.GetValue(obj.Instance); collectionProperty.ParserSetPropertyElement(element); collectionInstance = collectionInstance ?? Activator.CreateInstance(collectionProperty.propertyInfo.ReturnType); } } XmlSpace oldXmlSpace = currentXmlSpace; if (element.HasAttribute("xml:space")) { currentXmlSpace = (XmlSpace)Enum.Parse(typeof(XmlSpace), element.GetAttribute("xml:space"), true); } foreach (XmlNode childNode in element.ChildNodes) { currentParsedNode = childNode; XamlPropertyValue childValue = ParseValue(childNode); if (childValue != null) { if (propertyInfo.IsCollection) { if (isElementChildACollectionForProperty) { collectionProperty.PropertyValue = childValue; } else { CollectionSupport.AddToCollection(propertyInfo.ReturnType, collectionInstance, childValue); collectionProperty.ParserAddCollectionElement(element, childValue); } } else { if (valueWasSet) { throw new XamlLoadException("non-collection property may have only one child element"); } valueWasSet = true; XamlProperty xp = new XamlProperty(obj, propertyInfo, childValue); xp.ParserSetPropertyElement(element); obj.AddProperty(xp); } } } currentParsedNode = element; currentXmlSpace = oldXmlSpace; }
void ParseObjectContent(XamlObject obj, XmlElement element, XamlPropertyInfo defaultProperty, XamlTextValue initializeFromTextValueInsteadOfConstructor) { bool isDefaultValueSet = false; XamlProperty collectionProperty = null; object collectionInstance = null; Type collectionType = null; XmlElement collectionPropertyElement = null; var elementChildNodes = GetNormalizedChildNodes(element); if (defaultProperty == null && obj.Instance != null && CollectionSupport.IsCollectionType(obj.Instance.GetType())) { XamlObject parentObj = obj.ParentObject; var parentElement = element.ParentNode; XamlPropertyInfo propertyInfo; if (parentObj != null) { propertyInfo = GetPropertyInfo(settings.TypeFinder, parentObj.Instance, parentObj.ElementType, parentElement.NamespaceURI, parentElement.LocalName); collectionProperty = FindExistingXamlProperty(parentObj, propertyInfo); } collectionInstance = obj.Instance; collectionType = obj.ElementType; collectionPropertyElement = element; } else if (defaultProperty != null && defaultProperty.IsCollection && !element.IsEmpty) { foreach (XmlNode childNode in elementChildNodes) { currentParsedNode = childNode; XmlElement childElement = childNode as XmlElement; if (childElement == null || !ObjectChildElementIsPropertyElement(childElement)) { obj.AddProperty(collectionProperty = new XamlProperty(obj, defaultProperty)); collectionType = defaultProperty.ReturnType; collectionInstance = defaultProperty.GetValue(obj.Instance); break; } } } currentParsedNode = element; if (collectionType != null && collectionInstance == null && elementChildNodes.Count() == 1) { var firstChild = elementChildNodes.First() as XmlElement; if (ObjectChildElementIsCollectionInstance(firstChild, collectionType)) { collectionInstance = ParseObject(firstChild); collectionProperty.PropertyValue = (XamlPropertyValue)collectionInstance; } else { throw new XamlLoadException("Collection Instance is null"); } } else { foreach (XmlNode childNode in elementChildNodes) { currentParsedNode = childNode; XmlElement childElement = childNode as XmlElement; if (childElement != null) { if (childElement.NamespaceURI == XamlConstants.XamlNamespace) { continue; } if (ObjectChildElementIsPropertyElement(childElement)) { ParseObjectChildElementAsPropertyElement(obj, childElement, defaultProperty); continue; } } if (initializeFromTextValueInsteadOfConstructor != null) { continue; } XamlPropertyValue childValue = ParseValue(childNode); if (childValue != null) { if (collectionProperty != null) { collectionProperty.ParserAddCollectionElement(collectionPropertyElement, childValue); CollectionSupport.AddToCollection(collectionType, collectionInstance, childValue); } else if (collectionProperty == null && collectionInstance is ResourceDictionary) { CollectionSupport.AddToCollection(collectionType, collectionInstance, childValue); } else { if (defaultProperty == null) { throw new XamlLoadException( "This element does not have a default value, cannot assign to it"); } if (isDefaultValueSet) { throw new XamlLoadException("default property may have only one value assigned"); } obj.AddProperty(new XamlProperty(obj, defaultProperty, childValue)); isDefaultValueSet = true; } } } } currentParsedNode = element; }