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By	Sonu Kapoor
First Posted	02/20/2005
Times viewed	218

How to Create a Comment with XmlDocument and XmlComment?

Summary How to Create a Comment with XmlDocument and XmlComment?

Using comments in code can sometimes save a lot of time to read and understand the code as well as structure. Therefore coders use comments wherever possible. The XmlTextWriter section already contains an example to write comments, however it uses the XmlTextWriter class. In this example I will show you how you can add comments with the XmlDocument class. I will modify the following file with a comment.

Additional information
<%@ import namespace="System.Xml" %> <%@ page language="C#" debug="true"%> <script runat="server"> void page_load(object sender, System.EventArgs e){ // Create a new XmlDocument object XmlDocument xmlDoc = new XmlDocument(); // Load the xml file into the object xmlDoc.Load(Server.MapPath("XmlDocumentWithCreateComment.xml")); //Create a new comment. XmlComment newComment = xmlDoc.CreateComment("Comment it please!"); //Add the new node to the XmlDocument. XmlNode node = xmlDoc.SelectSingleNode("CategoryList/Category[@ID='02'~"); XmlNode root = node.ParentNode; // Insert the comment before the node xmlDoc.InsertAfter(newComment, root); // and insert the node also after the node xmlDoc.InsertAfter(newComment, root); // Save the xml file xmlDoc.Save(Server.MapPath("XmlDocumentWithCreateComment.xml")); } </script>

Further additional information
XmlDocumentWithCreateComment.xml: <?xml version="1.0" encoding="utf-8"?> <CategoryList> <Category ID="01"> <MainCategory>XML</MainCategory> <Description>This is a list my XML articles.</Description> <Active>true</Active> </Category> <Category ID="02"> <MainCategory>XPath</MainCategory> <Description>This is a list my XPath articles.</Description> <Active>true</Active> </Category> </CategoryList> This is the modified XML file with the added comment. <?xml version="1.0" encoding="utf-8"?>  <CategoryList> <Category ID="01"> <MainCategory>XML</MainCategory> <Description>This is a list my XML articles.</Description> <Active>true</Active> </Category> <Category ID="02"> <MainCategory>XPath</MainCategory> <Description>This is a list my XPath articles.</Description> <Active>true</Active> </Category> </CategoryList>

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