How to Read/Write xml string in different way using C#.net

How to Read/Write xml string in different way using C#.net

Namespace

using System.Xml;

using System.Xml.Xsl;

using System.Xml.XPath;

using System.IO;

using System.Text;

Example Value

string xmlProduct = "<product><details><code value ="MDI">100</code></details></product>"

Read XML

1) First way you can read string xml using dataset

StringReader productDetails = new StringReader(xmlProduct);

DataSet dsProduct = new DataSet();

dsProduct.ReadXml(productDetails);

2) If you have proper XML format value in file

DataSet dsProduct = new DataSet();

dsProduct.ReadXml("C:\Read.xml");

3) You can use XmlTextReader to read xml

string nodeText; int depth;

//In this way you can convert Xmlstring to memoryStream

byte[] data = Encoding.ASCII.GetBytes(xmlProduct);

MemoryStream memStream = new MemoryStream(data);

XmlTextReader textReader = new XmlTextReader(memStream);

XmlNodeType nodeType;

while (textReader.Read())

{

textReader.MoveToFirstAttribute();

nodeType = textReader.NodeType;

if (nodeType.CompareTo(XmlNodeType.Attribute) == 0)

{

nodeText = textReader.Value;

depth = textReader.Depth;

}

}

4) You can use CmlDocument object to read xml,This is the best way to read xml string to read node by node and all attributes.

XmlDocument xmlProductDoc = new XmlDocument();

xmlProductDoc.LoadXml(xmlProduct);

for (int i = 0; i < xmlProductDoc.GetElementsByTagName("product").Count;i++)

{

string xmlVal = xmlProductDoc.GetElementsByTagName("product").innerXml;

string xmlAttributeVal = xmlProductDoc.GetElementsByTagName("product").

Attributes ["value"].value;

}

Write XML

1) You can use XmlTesWriter to write xml file

XmlTextWriter myXmlTextWriter = new XmlTextWriter("books.xml", null);

myXmlTextWriter.Formatting = Formatting.Indented;

myXmlTextWriter.WriteStartDocument(false);

myXmlTextWriter.WriteDocType("bookstore", null, "books.dtd", null);

myXmlTextWriter.WriteComment("This file represents inventory database");

myXmlTextWriter.WriteStartElement("bookstore");

myXmlTextWriter.WriteStartElement("book", null);

myXmlTextWriter.WriteAttributeString("genre", "autobiography");

myXmlTextWriter.WriteAttributeString("publicationdate", "1990");

myXmlTextWriter.WriteAttributeString("ISBN", "0-4567-123-9");

myXmlTextWriter.WriteElementString("title", null, "Baby book");

myXmlTextWriter.WriteStartElement("Author", null);

myXmlTextWriter.WriteElementString("first-name", "Ritesh");

myXmlTextWriter.WriteElementString("last-name", "Kesharwani");

myXmlTextWriter.WriteEndElement();

myXmlTextWriter.WriteElementString("price", "8.9");

myXmlTextWriter.WriteEndElement();

myXmlTextWriter.WriteEndElement();

//Write the XML to file and close the myXmlTextWriter

myXmlTextWriter.Flush();

myXmlTextWriter.Close();

2) Basic way to write xml into file

http://riteshk.blogspot.com/2005/03/how-to-readwrite-into-xml.html