[C#] XmlNode's innertext is not changing

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Hello , I've been trying to change XML node's innertext from a WinForm by using C# .
MessageBox shows the "needed".
I've got no idea why It is not changing the xml file.
It is not giving any exceptions.

C#

private void btnUpdate_Click(object sender, EventArgs e)
        {
            XmlDocument doc = new XmlDocument();
            doc.Load(@"users.xml");
            XmlNodeList elem = doc.GetElementsByTagName("ID");
            foreach (XmlNode gettags in elem)
            {
                gettags.FirstChild.InnerText = "needed";
             gettags.FirstChild.Value="needed";  
                MessageBox.Show(gettags.FirstChild.InnerText);
            }
        }

Posted 5-Jul-14 1:28am

Cenkay Vergili

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Thomas Daniels · Accepted Answer · 2014-07-05T01:33:00

If you change a value, it doesn't save the file automatically. If you're ready updating your file, save it using the Save method:

C#

private void btnUpdate_Click(object sender, EventArgs e)
        {
            XmlDocument doc = new XmlDocument();
            doc.Load(@"users.xml");
            XmlNodeList elem = doc.GetElementsByTagName("ID");
            foreach (XmlNode gettags in elem)
            {
                gettags.FirstChild.InnerText = "needed";
             gettags.FirstChild.Value="needed";  
                MessageBox.Show(gettags.FirstChild.InnerText);
            }
            doc.Save("users.xml"); // <-- save the file
        }