vb net read xml file

To read A. xml file in. Net:1. Use the xmltextreader class, such: Xmltextreader reader = new xmltextreader (server. mappath (xmlpath ));While (reader. Read ()){If (reader. nodetype = xmlnodetype. Text){Response. Write (reader. Name + "DD" + reader. value );}} 2. Use the

Xml introduceIn this article I'll explain how to read XML files in a asp.net application, which is a very useful technique. With this technique, we can customize the configuration file for our application, or we can read the data stored in the

method One: Using an XML control method Two: using DOM technology method Three: Working with a DataSet object method Four: read as text

The XML file format is as follows:Read a property in a nodeXmlDocument doc=new XmlDocument ();Doc. Load ("config +");XmlNode Xnuser=doc. selectSingleNode ("UserData");String Flag=xnuser. attributes["CreateUser"]. InnerText;Reading values from a nodeXmlDocument doc=new XmlDocument ();Doc. Load ("config +");XmlNode xnserver = doc. selectSingleNode ("Userdata/dataconnection/server");Modify the properties of a

method One: Using an XML control Code Copy Code code as follows: method Two: Using DOM technologyCode Copy Code code as follows: method Three: Working with a DataSet object Code Copy Code code as follows: method Four: read as text Code Copy Code code as follows:

DataTable DataSource (String xmlfile){ DataSet objDS = new DataSet (); Suppose the XML file is placed in the App_Data directory Objds.readxml (Httpcontext.current.server.mappath ("~/app_data/" + xmlfile)); return objds.tables[0]; } String Getfeildtext (DataTable dt, String condition, string outputfieldtext) { string result = String.Empty; datarow[] row = dt.select (condition); if (Row.le

The public void Setxmlfilevalue (string xmlpath,string appkey,string appvalue)/write Xmlpath is the file path + filename, Appkey is Key name, Appvalue is value { XmlDocument xdoc = new XmlDocument (); Xdoc.load (Xmlpath); XmlNode XNode; XmlElement xElem1; XmlElement xElem2; XNode = Xdoc.selectsinglenode ("//appsettings"); XElem1 = (XmlElement) xnode.selectsinglenode ("//add[@key = '" + Appkey + "']");if (xElem1!= null){Xelem1.setattribute ("value", a

Read fixed XML files: Set myxml = server. Createobject ("Microsoft. xmldom ")Myxml. Load (server. mappath ("test. xml "))Set myroot=myxml.doc umentelement. selectsinglenode ("Ao ")Dim lenth: lenth = myroot. childnodes. Length 'node countFor I = 0 to lenth-1Response. Write (myroot. childnodes. Item (I). Text)Next Set myroot = nothingSet myxml = nothin

provide me with useful smart prompts. How can I get useful smart prompts? The key is that we need to (in general) vs/VB. NET provides the schema definition information of the XML document to be read and written, that is, the schema definition file suffixed with XSD, which i

collection is referenced, you can start the reading operation as shown in the following code: XmlTextReader reader = new XmlTextReader (pathToXmlDoc ); Int elementCount = 0; While (reader. Read ()){ If (reader. NodeType = XmlNodeType. Element ){ ElementCount ++; } } The XmlTextReader class has several different constructors. the one shown above is responsible for receiving the path of an XML

Create another project under the bin folder of the target folder 'Create two files 'One is "myxml. xml" 'One is "myxml. mdb" 'Here is a table named "users" with three field names "nameid", "Age", "faverity" 'Then go to the graphic interface Click "data" in the "toolbox" to set "oledbconnection", "oledbcomman", "dataset", "oledbdataadapter" 'Pull the form Interface 'Perform operations on these controls in sequence 'My folder is D: \ vbproject

XmlWriterSettings = New xmlwritersettings () settings. Omitxmldeclaration = Truesettings.encoding = Encoding.defaultdim Mem as System.IO.MemoryStream = New MemoryStream () Using Writer as XmlWriter = XmlWriter.Create (mem, settings)' Remove the default namespace xmlns:xsd and Xmlns:xsiDim NSS as XmlSerializerNamespaces = New xmlserializernamespaces ()NSS. Add ("", "")Dim Formatter as XmlSerializer = New XmlSerializer (Wholecarda.gettype ())formatter. Serialize (writer, Wholecarda, NSS) End Usin

The xml file is read to the database, and the xml file is read to the database. Read xml files to the database Step 1: import the package C