by Keyvan Nayyeri via Keyvan Nayyeri on 9/18/2006 5:38:20 AM
This is just my favorite way to generate XML files on fly. Often I need to create an XML file in memory independent from a file. To do this I use StringWriter in conjunction with XmlTextWriter to generate my XML file as string.
This approach has some issues for encoding since .NET uses UTF-16 encoding for strings. You can follow Robert's post and its comments for more information.
The process to generate an XML file with this approach is so easy: create a StringWriter object and pass it as a TextWriter stream to XmlTextWriter constructor to create a new instance then generate your XML via this XmlTextWriter and finally get its string equivalent from StringWriter.ToString() method.
As an example look at my sample below:
public class MyClass
{
public static string GetXml(bool addId, int id)
StringWriter stringWriter = new StringWriter();
XmlTextWriter xmltextWriter =
new XmlTextWriter(stringWriter);
xmltextWriter.Formatting = Formatting.Indented;
// Start document
xmltextWriter.WriteStartDocument();
xmltextWriter.WriteStartElement("myxml");
if (addId)
xmltextWriter.WriteAttributeString
("id", id.ToString());
("attribute1", "value1");
("attribute2", "value2");
xmltextWriter.WriteStartElement
("myelement");
("attribute3", "value3");
xmltextWriter.WriteElementString
("subelement", "This is a value!");
xmltextWriter.WriteEndElement();
// End document
xmltextWriter.Flush();
xmltextWriter.Close();
stringWriter.Flush();
return stringWriter.ToString();
}
To test my code I use a Console application:
static void Main(string[] args)
Console.Title = "Create XML File on Fly";
Console.WriteLine(MyClass.GetXml(true, 5));
Console.ReadLine();
Also I can use this string value to load it into an XmlDocument object and manipulate my document there.
XmlDocument xml = new XmlDocument();
xml.LoadXml(MyClass.GetXml(true, 5));
XmlNodeList nodes = xml.SelectNodes
("/myxml/myelement");
Console.WriteLine(nodes[0].
Attributes["attribute3"].InnerText);
Now playing: Richard Clayderman - Souvenirs D'enfance
Original Post: Use StringWriter and XmlTextWriter to Generate XML Documents on Fly
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