XmlTextWriter.Indentation Property gets or sets how many IndentChars to write
using System; using System.IO; using System.Xml; public class Sample { public static void Main() { XmlTextWriter writer = null; writer = new XmlTextWriter (Console.Out); writer.Formatting = Formatting.Indented; writer.Indentation = 4; writer.WriteStartElement("book"); writer.WriteStartElement("title"); writer.WriteString("C#"); writer.WriteEndElement(); writer.WriteEndElement(); writer.Close(); } }