How to add the Child elements in xml

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C#

XML

Windows

hi all,

I am working on xml

when I add new recoard always replacing 1st record it's not accepting 2nd.. records

my code is

if (File.Exists(path))
            {
                XElement xml = new XElement("Users", new XElement("User", new XElement("UserName", txtUserName.Text),
                    new XElement("Password", txtpassword.Text), new XElement("Role", Role)));
                xml.Save(path);
                MessageBox.Show("Saved");
            }

result is

//this is result
<Users>
  <User>
    <UserName>admin</UserName>
    <Password>admin</Password>
    <Role>Admin</Role>
  </User>
</Users>
//I want below result
<Users>
  <User>
    <UserName>admin</UserName>
    <Password>admin</Password>
    <Role>Admin</Role>
  </User>
<User>
    <UserName>test</UserName>
    <Password>test</Password>
    <Role>User</Role>
  </User>
</Users>