Save string to xml file (UWP) c#
<p>I am trying to save an string to an xml file and am recieving the following error:</p>

<p><strong>An exception of type 'System.UnauthorizedAccessException' occurred in System.IO.FileSystem.dll but was not handled in user code
Additional information: Access to the path 'c:\users\brandon\documents\visual studio 2015\Projects\UniversalTestApp\UniversalTestApp\bin\x86\Debug\AppX\xmlfile.xml' is denied.</strong></p>

<p>Reading further into the issue it would seem that I don't have the approriate permissions to complete this save.  How would I go about </p>

<pre><code>    private async void btnSubmit_Click(object sender, RoutedEventArgs e)
    {
        var bookmark = new Bookmark();
        bookmark.Button = cmbButton.SelectedIndex;
        bookmark.Name = txtName.Text;
        bookmark.URL = txtURL.Text;
        string output = SerializeToXml(bookmark);
        XmlDocument xdox = new XmlDocument();
        File.WriteAllText("xmlfile.xml",output);        
    }
</code></pre>