如何從C＃中的XDocument創建縮進的XML字符串？

Question

我有一個XDocument對象，並且ToString（）方法返回沒有任何縮進的XML。如何從包含縮進的XML創建一個字符串？

編輯：我問如何創建一個內存字符串，而不是寫出一個文件。

編輯：看起來像我不小心問了一個技巧問題在這裏... ToString（）確實返回縮進的XML。

Answer 1

XDocument doc = XDocument.Parse(xmlString); 
string indented = doc.ToString(); 

Answer 2

從here

XmlDocument doc = new XmlDocument(); 
doc.LoadXml("<item><name>wrench</name></item>"); 

// Save the document to a file and auto-indent the output. 
XmlTextWriter writer = new XmlTextWriter("data.xml",null); 
writer.Formatting = Formatting.Indented; 
doc.Save(writer); 

Answer 3

要使用一個XDocument（而不是一個XmlDocument）創建一個字符串，你可以使用：

 XDocument doc = new XDocument(
      new XComment("This is a comment"), 
      new XElement("Root", 
       new XElement("Child1", "data1"), 
       new XElement("Child2", "data2") 
      ) 
     ); 

     XmlWriterSettings settings = new XmlWriterSettings(); 
     settings.Indent = true; 
     StringBuilder sb = new StringBuilder(); 
     using (XmlWriter writer = XmlTextWriter.Create(sb, settings)) { 
      doc.WriteTo(writer); 
      writer.Flush(); 
     } 
     string outputXml = sb.ToString(); 

編輯：更新使用XmlWriter.Create和StringBuilder和良好的形式（using）。

Answer 4

只是一個同樣的湯更有味道... ;-)

StringWriter sw = new StringWriter(); 
XmlTextWriter xw = new XmlTextWriter(sw); 
xw.Formatting = Formatting.Indented; 
doc.WriteTo(xw); 
Console.WriteLine(sw.ToString()); 

編輯：感謝John Saunders。這是一個應該更好地符合Creating XML Writers on MSDN的版本。

using System; 
using System.Text; 
using System.Xml; 
using System.Xml.Linq; 

class Program 
{ 
    static void Main(string[] args) 
    { 
     XDocument doc = new XDocument(
     new XComment("This is a comment"), 
     new XElement("Root", 
      new XElement("Child1", "data1"), 
      new XElement("Child2", "data2") 
      ) 
      ); 

     var builder = new StringBuilder(); 
     var settings = new XmlWriterSettings() 
     { 
      Indent = true 
     }; 
     using (var writer = XmlWriter.Create(builder, settings)) 
     { 
      doc.WriteTo(writer); 
     } 
     Console.WriteLine(builder.ToString()); 
    } 
}