open xml开发系列课程平台上

.NET平台下的XML先开发工程中达金桥技术服议XML.NET平台下的XMLW3C标准在.NETFramework的应用MSXML和System.Xml的比较W3C标准在.NETFramework中的应MSXML和System.XmlMSXML XML1.0XML DOMLevel DOMLevel2 XML System.Xml2.0新特XML在.NET2.0中的优势体现在性能方Reading/writing2xasfastXSLT3xasfastXml‐Schemaupto25percent可用性,兼容性和遵从一些beta版的特性被议XMLXML的读基于流的方使用DOM进行基于流的读

基于流的读ReadingXMLwithanstringxmlNamespace="ht XmlReaderSettingssettings=newXmlReaderSettings();ments=true;settings.ProhibitDtd=true;using(XmlReaderreader=XmlReader.Create("sample.xml",{while{if(reader.IsStar ement()&&reader.LocalName=="orderItem"){ ty",xmlNamespace); ty=reader.ReadElementContentAsInt();reader.ReadToNextSibling("unitPrice",xmlNamespace);decimalunitPrice= ine("Total:"+ty*}}}基于流的读WritingXMLwithanstringxmlNamespace="ht XmlWriterSettingssettings=newXmlWriterSettings();settings.CloseOutput=true;settings.Indent=using(XmlWriterwriter=XmlWriter.Create(Console.Out,{ (true);//standalone ement("order",xmlNamespace); ement("orderItems",xmlNamespace); ement("orderItem",xmlNamespace); ty",xmlNamespace,writer.WriteElementString("unitPrice",xmlNamespace,}readersandwriters进行利用DOM使用DOM

利用DOM进行DOMNodesandRelated.NETNodeW3CDOMNodeRelated.NETDOMnodeXmlXml=newusing=newusing(FileStreamfsnewFileStream("sample.xml",FileMode.Open,{}using(XmlTextWriterwriter=new{writer.Formatting=}LoadingfromandsavingtoanXMLThe classisthecoreFordataUsethisLoad()andXmlReader/对DOMNavigatingthroughXmlElementandXmlAttributeare<?xml<?xml<book XmlNodeXmlNodebook=XmlNodepriceNode=XmlNodeisbnNode=book.GetAttributeNode("isbn");stringprice=priceNode.FirstChild.Value;stringisbn=isbnNode.Value;利用DOM进行操Manipulating <book<booktitle="XMLis//firstcreatethe doc=new XmlElementbookNode=doc.CreateElement("book");XmlNodepriceNode=doc.CreateElement("price");XmlNodeprice=doc.CreateTextNode("19.99");//setanattributebookNode.SetAttribute("title","XMLisCool");//addthenodestogether mentcommentment("SomeXmlProcessingInstructionmentcommentment("SomeXmlProcessingInstructionpi="xml-stylesheet","type='text/xsl'Manipulating 删除结点,使用父级的从其它的文档中引入XmlNodenodeXmlNodenode=Element,利用DOM议XML对XMLNamespaces的处XmlNamespaceManager类介<p:sldMasterIdLstXML<p:sldMasterIdLst /myOrderSchema”,现在元素的名为 XmlNamespaceManager类介 在所有的查询中创建和使用一个namespace需引XML;XmlNamespaceManager;XmlNamespaceManagermgr=newmgr.AddNamespace("myPf",.SelectSingleNode("//myPf:someElement",.SelectSingleNode("//myPf:someElement",议 XMLXMLSchema对象模型XmlSchemaValidator验证技术目前存在的验证XML完整性的技术有TypeDefinitionsXml‐DataReducedschemaXML‐SchemaDefinitionLanguageXML‐Schema是目前标准的XML完整性SchemaObject由XmlSchema类进行TheXmlSchemaSet（.netfx2.0）XmlSchemaSet在标准的兼容性和性能方面有很大的改‘logical’schema支持完全相同的目标命名空Validatingwiththe//CreatetheXML-XmlSchemaschema=using(XmlReaderreader={schema=XmlSchema.Read(reader,}//CreatethesettingsfortheXmlReaderXmlReaderSettingssettings=newXmlReaderSettings();settings.ValidationType=ValidationType.Schema;//addittotheXmlSchemaSetofthesettingsclass//Nowreadwiththereaderwhichalsoperformesvalidationusing(XmlReaderreader=XmlReader.Create("sample.xml",{while(reader.Read())}验证XML‐Schemas的容器//CreatetheXML-SchemaXmlSchemaschema=using(XmlReaderreader={schema=XmlSchema.Read(reader,}=new//Load and=new//Validateitusingtheattached验证WordProcessingML议XMLXML使用XMLNamespaces进行操查询处理1.Load

5.Checkthe MoveToRoot(

Evaluate()Select()Compile()

ForMoveNext(ForMoveNext(3.CreatetheMoveToParent(MoveToParent(2.2.Create4.Compile查询 在很多地方支持X‐PathCreateanewXPathNavigatorusingtheCreateNavigator()methodUsetheXml SelectNodes(xpath)or使用 进行最优化查XPathNavigatorXPathNavigatornavigator=foreach(XPathNavigatoritemNavigatorin{}XmlNodenodeXPathNavigatornavigatorforeach(XPathNavigatoritemNavigatorinnaviga