Examples of creating, querying, and modifying XML files with namespaces

xml| Create

XML is becoming more and more widely used, such as Vista, Flex programming will use XML, correctly grasp the various operations of XML, to improve the efficiency of programming is critical. Here is an example of an integrated approach to XML with namespaces.
C#:string w3namespace = "http://www.w3.org/2000/xmlns/";
System.Xml.XmlDocument doc = new System.Xml.XmlDocument ();

To create a root node
System.Xml.XmlNode root = Doc. CreateNode (System.Xml.XmlNodeType.Element, "w", "Worddocument", "http://schemas.microsoft.com/office/word/2003/2/wordml");
System.Xml.XmlAttribute xa;
Xa = doc. CreateAttribute ("xmlns", "V", w3namespace);
Xa. Value = "URN:SCHEMAS-MICROSOFT-COM:VML";
Root. Attributes.append (XA);

Adding attributes to a node
Xa = doc. CreateAttribute ("xmlns", "W10", w3namespace);
Xa. Value = "Urn:schemas-microsoft-com:office:word";
Root. Attributes.append (XA);

Xa = doc. CreateAttribute ("xmlns", "SL", w3namespace);
Xa. Value = "Http://schemas.microsoft.com/schemaLibrary/2003/2/core";
Root. Attributes.append (XA);

Xa = doc. CreateAttribute ("xmlns", "AML", W3namespace);
Xa. Value = "Http://schemas.microsoft.com/aml/2001/core";
Root. Attributes.append (XA);

Xa = doc. CreateAttribute ("xmlns", "wx", w3namespace);
Xa. Value = "Http://schemas.microsoft.com/office/word/2003/2/auxHint";
Root. Attributes.append (XA);

Xa = doc. CreateAttribute ("xmlns", "O", w3namespace);
Xa. Value = "Urn:schemas-microsoft-com:office:office";
Root. Attributes.append (XA);

Xa = doc. CreateAttribute ("xmlns", "DT", w3namespace);
Xa. Value = "uuid:c2f41010-65b3-11d1-a29f-00aa00c14882";
Root. Attributes.append (XA);

Xa = doc. CreateAttribute ("xmlns", "space", w3namespace);
Xa. Value = "preserve";
Root. Attributes.append (XA);

Add a value to a node
System.Xml.XmlNode BODY = doc. CreateNode (System.Xml.XmlNodeType.Element, "V", "body", "urn:schemas-microsoft-com:vml");
System.Xml.XmlNode Childnode = doc. CreateNode (System.Xml.XmlNodeType.Element, "O", "T", "Urn:schemas-microsoft-com:office:office");
Childnode.innertext = "Welcome to the wonderful world of Mengxian" ";

Add to the memory tree
Body. AppendChild (Childnode);
Root. AppendChild (body);
Doc. AppendChild (root);

Add Node Declaration
System.Xml.XmlDeclaration xd = doc. Createxmldeclaration ("1.0", "UTF-8", "yes");
Doc. InsertBefore (XD, Doc. DocumentElement);

Add processing instructions
System.Xml.XmlProcessingInstruction SPI = doc. Createprocessinginstruction ("Mso-application", "progid=" Word.Document ")";
Doc. InsertBefore (SPI, Doc. DocumentElement);

Query node
System.Xml.XmlNamespaceManager Nsmanager = new System.Xml.XmlNamespaceManager (Doc. NameTable);
Nsmanager. AddNamespace ("W", "Http://schemas.microsoft.com/office/word/2003/2/wordml");
Nsmanager. AddNamespace ("V", "urn:schemas-microsoft-com:vml");
Nsmanager. AddNamespace ("O", "Urn:schemas-microsoft-com:office:office");
System.Xml.XmlNode node = doc. selectSingleNode ("W:worddocument/v:body/o:t", Nsmanager);
Response.Write (node. InnerText);

Node. InnerText = "Welcome to the wonderful World of Mengxian": http://dotnet.aspx.cc/";

To create a CDATA node
System.Xml.XmlCDataSection Xcds = doc. Createcdatasection ("<a href= ' http://dotnet.aspx.cc/' >" Mengxian the Wonderful World "</a>");
Node. Parentnode.insertafter (Xcds, node);

Response.Write (Xcds. InnerText);

Doc. Save (Server.MapPath ("Test.xml"));
Vb. Net:dim w3namespace as String = "http://www.w3.org/2000/xmlns/"
Dim doc as System.Xml.XmlDocument = New System.Xml.XmlDocument
Dim root as System.Xml.XmlNode = doc. CreateNode (System.Xml.XmlNodeType.Element, "w", "Worddocument", "HTTP://SCHEMAS.MICROSOFT.COM/OFFICE/WORD/2003/2/WORDML")
Dim XA as System.Xml.XmlAttribute
Xa = doc. CreateAttribute ("xmlns", "V", W3namespace)
Xa. Value = "URN:SCHEMAS-MICROSOFT-COM:VML"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "W10", W3namespace)
Xa. Value = "Urn:schemas-microsoft-com:office:word"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "SL", W3namespace)
Xa. Value = "Http://schemas.microsoft.com/schemaLibrary/2003/2/core"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "AML", W3namespace)
Xa. Value = "Http://schemas.microsoft.com/aml/2001/core"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "wx", W3namespace)
Xa. Value = "Http://schemas.microsoft.com/office/word/2003/2/auxHint"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "O", W3namespace)
Xa. Value = "Urn:schemas-microsoft-com:office:office"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "DT", W3namespace)
Xa. Value = "uuid:c2f41010-65b3-11d1-a29f-00aa00c14882"
Root. Attributes.append (XA)
Xa = doc. CreateAttribute ("xmlns", "space", W3namespace)
Xa. Value = "preserve"
Root. Attributes.append (XA)
Dim body as System.Xml.XmlNode = doc. CreateNode (System.Xml.XmlNodeType.Element, "V", "body", "URN:SCHEMAS-MICROSOFT-COM:VML")
Dim Childnode as System.Xml.XmlNode = Doc. CreateNode (System.Xml.XmlNodeType.Element, "O", "T", "Urn:schemas-microsoft-com:office:office")
Childnode.innertext = "Welcome to the wonderful world of Mengxian" "
Body. AppendChild (Childnode)
Root. AppendChild (body)
Doc. AppendChild (Root)
Dim xd as System.Xml.XmlDeclaration = doc. Createxmldeclaration ("1.0", "UTF-8", "yes")
Doc. InsertBefore (XD, Doc. documentelement)
Dim SPI as System.Xml.XmlProcessingInstruction = doc. Createprocessinginstruction ("Mso-application", "progid=" "Word.Document" ")
Doc. InsertBefore (SPI, Doc. documentelement)
Dim Nsmanager as System.Xml.XmlNamespaceManager = New System.Xml.XmlNamespaceManager (Doc. NameTable)
Nsmanager. AddNamespace ("W", "Http://schemas.microsoft.com/office/word/2003/2/wordml")
Nsmanager. AddNamespace ("V", "urn:schemas-microsoft-com:vml")
Nsmanager. AddNamespace ("O", "Urn:schemas-microsoft-com:office:office")
Dim node as System.Xml.XmlNode = Doc. selectSingleNode ("W:worddocument/v:body/o:t", Nsmanager)
Response.Write (node. InnerText)
Node. InnerText = "Welcome to the wonderful World of Mengxian": http://dotnet.aspx.cc/"
Dim Xcds as System.Xml.XmlCDataSection = Doc. Createcdatasection ("<a href= ' http://dotnet.aspx.cc/' >" Mengxian's Wonderful World "</a>")
Node. Parentnode.insertafter (Xcds, node)
Response.Write (Xcds. InnerText)
Doc. Save (Server.MapPath ("Test.xml"))