Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

C# + XML writing

Posted on 2006-10-22
2
Medium Priority
?
264 Views
Last Modified: 2010-04-16
I'm trying a little self study and i'm having a problem with the following. Any code help or if you know a resource that can explain how to properly write the code would be amazing.

Here is the output i'm looking for in my XML file:

<?xml version="1.0" ?>
<Document>
     <Pair>
          <Name>somevalue</Name>
          <Value>somevalue</Value>
     </Pair>
     <Pair>
          <Name>somevalue</Name>
          <Value>somevalue</Value>
     </Pair>
</Document>

Here is my code:

public void saveXML()
            {
                  XmlDocument xmldoc;
                  XmlNode xmlnode;
                  XmlElement xmlelem;
                  XmlElement xmlelem2;
                  XmlText xmltext;

                  xmldoc=new XmlDocument();
                  //let's add the XML declaration section
                  xmlnode=xmldoc.CreateNode(XmlNodeType.XmlDeclaration,"","");
                  xmldoc.AppendChild(xmlnode);
                  
                  //let's add the root element
                  xmlelem=xmldoc.CreateElement("","Document","");
                  xmldoc.AppendChild(xmlelem);

                  for(int i=0; i < 3;i++)
                  {
                        //add a pair
                        xmlelem=xmldoc.CreateElement("","Pair","");         // <<--Recieve error here
                        xmldoc.AppendChild(xmlelem);                             //

                        //let's add another element (child of the Pair)
                        xmlelem = xmldoc.CreateElement("","Name","");
                        xmltext =xmldoc.CreateTextNode( "somevalue");
                        xmlelem.AppendChild(xmltext);
                        xmldoc.ChildNodes.Item(1).AppendChild(xmlelem);

                        xmlelem2 = xmldoc.CreateElement("","Value","");
                        xmltext =xmldoc.CreateTextNode( "somevalue" );
                        xmlelem2.AppendChild(xmltext);
                        xmldoc.ChildNodes.Item(1).AppendChild(xmlelem2);
                  }
                  //save the XML document in a file: C:\namevalue.xml
                  xmldoc.Save("c:\\namevalue.xml");
            }

Thanks for your time!
0
Comment
Question by:RHopkinson
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 18

Accepted Solution

by:
Ravi Singh earned 500 total points
ID: 17785516
Hi, when working with the XmlDocument class I find it easier to have seperate element objects for each of your XML elements (if theres a small amount of elements)... it allows you to construct the XML document easily as you have the references to the elements and all you have to do is to append to them etc, i've modified your code slightly and commented it:

public void saveXML()
{
      XmlDocument xmlDoc;
      XmlNode decNode;
      XmlElement rootElement, pairElement, nameElement, valueElement;

      xmlDoc = new XmlDocument();
                  
      //Create and add the XML declaration
      decNode = xmlDoc.CreateNode(XmlNodeType.XmlDeclaration, null, null);
      xmlDoc.AppendChild(decNode);
               
      //Create and add the root element Document
      rootElement = xmlDoc.CreateElement("Document");
      xmlDoc.AppendChild(rootElement);

      for(int i = 0; i < 3; i++)
      {
            //Create a new Pair element and add it to the Root element
            pairElement = xmlDoc.CreateElement("Pair");
            rootElement.AppendChild(pairElement);

            //Create a new Name element, set its value and add it to Pair element
            nameElement = xmlDoc.CreateElement("Name");
            nameElement.InnerText = "Some name";
            pairElement.AppendChild(nameElement);

            //Create a new Value element, set its value and add it to Pair element
            valueElement = xmlDoc.CreateElement("Value");
            valueElement.InnerText = "Some value";
            pairElement.AppendChild(valueElement);
      }
                  
      //Save the XML document
      xmlDoc.Save(@"c:\namevalue.xml");
}
0
 

Author Comment

by:RHopkinson
ID: 17785568
Thanks for the quick reply and excellent code! very easy to understand!
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Najam
Having new technologies does not mean they will completely replace old components.  Recently I had to create WCF that will be called by VB6 component.  Here I will describe what steps one should follow while doing so, please feel free to post any qu…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
Video by: ITPro.TV
In this episode Don builds upon the troubleshooting techniques by demonstrating how to properly monitor a vSphere deployment to detect problems before they occur. He begins the show using tools found within the vSphere suite as ends the show demonst…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …

597 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question