How to overwrite/edit XML element in C#
<p>I am making a program that takes information from the user and saves it as an <code>XML</code> file. The information includes a name, and other details. I would like to be able to allow the user to enter the same name, and instead of a new element being created with the same name, it would overwrite the existing element with the new values entered.</p>

<p>I hope that made sense, but in case not an example would be if I entered the name John Smith, and age 250. Clearly I would like to change the typo, so I would do it again to enter John Smith, age 25. When I do this a new element is created to add another John Smith, is there a way to just edit/overwrite the existing element? I'll post the code I use to create the <code>XML</code> if it is any help!</p>

<p>Thanks in advance!</p>

<pre><code>XDocument Xdoc = new XDocument(new XElement("XMLFile"));
        if (System.IO.File.Exists(filepath))
        {
            Xdoc = XDocument.Load(filepath);
        }
        else
        {
            Xdoc = new XDocument();
        }

        XElement xml = new XElement("Member");
        xml.Add(new XElement("Name", txtName.Text));
        xml.Add(new XElement("Age", txtAge.Text));
        xml.Add(new XElement("Nationality", txtNationality.Text));
        xml.Add(new XElement("EmailAddress", txtEmailAddress.Text));
        xml.Add(new XElement("ContactNumber", txtContactNumber.Text));


        if (Xdoc.Descendants().Count() &gt; 0)
        {
            Xdoc.Descendants().First().Add(xml);
        }
        else
        {
            Xdoc.Add(xml);
        }

        Xdoc.Save(filepath);
</code></pre>