30 Days C # foundation Consolidation----Find XML file elements

One: XML document

Learn about XML documents.

Use code to create an XML document.

            Reference namespace +using System.Xml;

            XmlDocument xdoc=new XmlDocument ();            XmlDeclaration Xdec = Xdoc. Createxmldeclaration ("1.0",                "gb2312", null);            Set the version information            Xdoc. AppendChild (XDEC);            Set node root            XmlElement Xele = Xdoc. createelement ("root");            Xdoc. AppendChild (Xele);            Sets the attribute ID of the node;            XmlAttribute Xatt = Xdoc. CreateAttribute ("id");            Xatt. Value = "Ahui";      Id=ahui;            Sets the text content of the node.            XmlText xttext = Xdoc. createTextNode ("aaaaaaaa");                        Xele. AppendChild (xttext);             The text is added below the root node.            Xele. Attributes.append (Xatt);       The attribute ID is added under the root property.            Xdoc. Save ("1.xml");                    Save the XML file.

---->LINQ to XML

            Reference namespace, using System.Xml.Linq;            XDocument xdoc=new XDocument ();            XElement xele=new XElement ("root", "Hello, World");            XAttribute xatt=new XAttribute ("id", "002");            Xdoc.add (Xele);            Xele. ADD (Xatt);            Xdoc.save ("2.xml");

Find--->xml

Find Name= "Zhang Hui 01" from the XML text and return to the parent node.

    Class Program {static void Main (string[] args) {#region Lookup XML//read local XML file.              XDocument Xdoc = xdocument.load ("Ahui.xml");            List<xelement> xele=new list<xelement> (); Searchelementszhanhui (Xdoc.            Root,xele); foreach (XElement item in Xele) {Console.WriteLine (item.            Name);            } console.readkey ();        #endregion}///<summary>//Find name= Zhang Hui 01 in the XML document.        </summary>//<param name= "ele" ></param>//<param name= "list" ></param> public static void Searchelementszhanhui (XElement ele,list<xelement> List) {//Iterates through all sections of Ele first Point//ele. Elements () + returns the set of child elements of this element or document in document order, foreach (XElement item in Ele. Elements ()) {//Determines whether this element is Zhang Hui if (item).         name.localname== "Name") {           if (item. Value = = "Zhang Hui") {list. ADD (item.                    Parent);                }}//If the item has a child node in it, it is recursive.            Searchelementszhanhui (item,list); }        }    }

30 Days C # foundation Consolidation----Find XML file elements