How to Append Node in C#?

[Sean Len]

Hello all, I currently working on a program that allow to append new xml node into a existing xml doc.
The following is my senario:
I need to generate few report based on 2 different client, Client1 and Client2.
Each client have 1 report title and config tag.
How can I add 1 more report title and config tag under Client1?

Currently I have a XML contain the following info:

<?xml version="1.0"?>
<ReportModule>
  <Client Client="Client1">
    <ReportTitle Title="Client1 Monthly Report">
      <Config>C:\\Client1 Monthly Report.xml</Config>
    </ReportTitle>
  </Client>
  <Client Client="Client2">
    <ReportTitle Title="Client2 Monthly Report">
      <Config>C:\\Client2 Monthly Report.xml</Config>
    </ReportTitle>
  </Client>
</ReportModule>

Any idea how to append a new ReportTitle record under Client1 to achieve below?
Changes is at Line 7 to 9.

<?xml version="1.0"?>
<ReportModule>
  <Client Client="Client1">
    <ReportTitle Title="Client1 Monthly Report">
      <Config>C:\\Client1 Monthly Report.xml</Config>
    </ReportTitle>
    <ReportTitle Title="Client1 Monthly Report 2">
      <Config>C:\\Client1 Monthly Report 2.xml</Config>
    </ReportTitle>
  </Client>
  <Client Client="Client2">
    <ReportTitle Title="Client2 Monthly Report">
      <Config>C:\\Client2 Monthly Report.xml</Config>
    </ReportTitle>
  </Client>
</ReportModule>

Anyone have experience or sample about this situation in C#?
Thank you very much.

[jkmyoung]

What clasess are you using to read, and write the xml?
Are you using XmlDocument objects?

Do you know the values of all your nodes before you create it, or do you have to read the values of them beforehand?
Examples of creating nodes: http://msdn.microsoft.com/en-us/library/fw1ys7w6.aspx

[Sean Len]

Hi jk,
Ya I am using XmlDocument to read an XML.
I already found answer for this issues.
Below is my solution. Just to share out with someone out there with similar problem.

private void AddNewNode()
{
    XmlDocument xmlDoc = new XmlDocument();
    xmlDoc.LoadXml("C://XML.xml");
 
    // declare a fragment to contain the to-be added new childnode
    XmlDocumentFragment xmlDocFrag = xmlDoc.CreateDocumentFragment();
 
    // Construct the new Xml node that you want to insert
    xmlDocFrag.InnerXml = @"<ReportTitle Title='Client1_2 Monthly Report'>" +
              "<Config>C:\\Client1_2 Monthly Report.xml</Config>" +
              "</ReportTitle>";
 
    // for each loop to find the target locatin to add the new childnode
    foreach (XmlNode xmlNode in xmlDoc)
    {
        // make sure it is ReportModule tag
        if (xmlNode.Name == "ReportModule")
        {
            // Another for each loop to target desire Child node
            foreach (XmlNode xmlNodeChild in xmlNode.ChildNodes)
            {
                // try to find the node with Client tag
                if (xmlNodeChild.Name == "Client")
                {
                    // check if the Client tag is the one we want to
                    // append/insert our new node.
                    if (xmlNodeChild.Attributes["Client"].Value == "Client1")
                    {
                        // append the new fragment to the found child node
                        xmlNodeChild.AppendChild(xmlDocFrag);
                        break;
                    }
                }
            }
        }
    }
}
 

Thanks to Mike Wong who implement the solution.