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App. config Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> ConnectionString = "Data Source = SHA-baiei-vista; Initial Catalog = test; Integrated Security = True" ProviderName = "System. Data. SqlClient"/> Winform code: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->XElement config = XElement. Load (Ap

XmlReader and XElement combination to read large xml documents, xmlreaderxelementIntroduction There are a large number of class libraries and APIs for operating xml data in. NET framework. However, after. NET framework 3.5, we generally prefer to use linq to xml. Whether it is XElement. the Load method is still XElement. the Parse method loads the entire xml file

Brief introductionThere are a lot of class libraries and APIs in the. NET Framework that manipulate XML data, but after the. NET Framework 3.5 Our preference is generally LINQ to XML.The LINQ to XML operation XML data, either the Xelement.load method or the Xelement.parse method, loads the entire XML file into memory, and LINQ to XML is less appropriate in the case of an XML file that is super large.The best way for a large XML file is to read only one part at a time, so that the entire XML file

0. Preparation: Define products. xml: 1. LINQ to XML1.1 load XML files Use the load method of xdocument and xelement to read XML files and perform initial transformation of xdocument and xelement. Xelement ELEM = xelement. load (@ "D:/visualstudioproject2008/test/linq2xml01/products. XML "); 1.2 select processing A

1. Custom business class to xelement type Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Xmlserializer serializer = New Xmlserializer ( Typeof (Cfedataanalysis ));System. Io. Stream writer = New System. Io. memorystream ();Serializer. serialize (writer, analysis ); Byte [] Result = New Byte [Writer. Length];Writer. Seek ( 0 , Seekorigin. Begin );Writer. Re

When loading XML using the load method, you will find the difference between the two: The following is a brief summary: Xdocument. Load () load the entire XML file including the root node Xelement. Load () does not load the XML Root Node Xelement. Load () Sample Code: File.WriteAllText("Test.xml", @" Result: Querying tree loaded with XElement.Load---- Xdocument. Load () sample code: File.WriteAllTex

Xelement. the setelementvalue method is very considerate. It will automatically determine whether the element has the child element. If there is an update or an addition, it will be deleted. It is also easy to laugh, xelement. setelementvalue ("lastname", null), which deletes the lastname element. // We will use this to store a reference to one of the elements in the XML tree. Output Before updating ele

Xelement does not support XPath. It must be implemented through extension. The extension class is system. xml. XPath. Extensions. Therefore, you can use the XPath method to filter elements by referencing the system. xml. XPath namespace. Example: String xml = " VaR ELEM = xelement. parse (XML ); Response. Write (ELEM. xpathselectelement ("// scorelogschema"). tostring ());

First, the preface The last essay is mainly aimed at the matching and conversion between attribute attributes and entities of XML. The main content of this essay is to convert the object into corresponding XML and XElement. These 2 essays transform and match XML in different ways, and each match is operated in different angles. This article is mainly for the transformation of object entities, the next chapter focuses on the matching of XML. Second,

First, LINQ to XML programming Basics1. LINQ to XML classes The System.Xml.Linq namespace contains 19 classes, and the following table lists their names and their descriptions: Class Describe XAttribute Represents an XML attribute Xcdata Represents a CDATA text node Xcomment Represents an XML annotation XContainer Abstract base class for all nodes that may have child nodes Xdeclaration Represents an

The XElement class is one of the basic classes in LINQtoXML. It represents an XML element. You can use this class to create elements, change element content, add, change, or delete child elements, add attributes to elements, or serialize element content in text format. It can also interoperate with other classes in System. Xml (such as XmlReader, XmlWriter, and compiledtransform. 1. LINQ to XML class Hide row number? Create XML public static void C

author3 =doc.CreateElement("author");author3.InnerText="Jim Wooley";XmlElement title =doc.CreateElement("author");title.InnerText ="LINQ in Action";XmlElement book =doc.CreateElement("book");book.AppendChild(author1);book.AppendChild(author2);book.AppendChild(author3);book.AppendChild(title);books.AppendChild(book);doc.AppendChild(books); Use LINQ toxml to generate XML documents new XElement("books", new