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copied!<p>For Example I use only 2 child nodes (FirstName,LastName). and I took file.xml in same directory with exe file, here's the code : </p> <pre><code>using System; using System.Windows.Forms; using System.Xml; namespace UpdateXmlRecord { public partial class Form1 : Form { private XmlDocument xDoc; public Form1() { InitializeComponent(); xDoc = new XmlDocument(); xDoc.Load("file.xml"); } /// <summary> /// Retrieve Xml Node /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sender, EventArgs e) { string id = txtId.Text; string fName = "", lName = ""; foreach (XmlElement element in xDoc.DocumentElement) { if (element.Name == "Customer" && element.Attributes["id"].Value == id) { foreach (XmlNode node in element) { if (node.Name == "FirstName") { fName = node.InnerText; } if (node.Name == "LastName") { lName = node.InnerText; } } } } txtFName.Text = fName; txtLName.Text = lName; } /// <summary> /// Save Xml Node With Custom Value /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button2_Click(object sender, EventArgs e) { string id = txtId.Text; foreach (XmlElement element in xDoc.DocumentElement) { if (element.Name == "Customer" && element.Attributes["id"].Value == id) { foreach (XmlNode node in element) { if (node.Name == "FirstName") { node.InnerText = txtFName.Text; } if (node.Name == "LastName") { node.InnerText = txtLName.Text; } } } } xDoc.Save("file.xml"); } } } </code></pre> <p>hope it's helpfull, enjoy it. :)</p>

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