public void ValidateCode(object sender, RoutedEventArgs e)
{
object context = Utils.GetDataContext(sender);
IEnumerable <XmlNode> data = Utils.GetXmlDataContext(context);
if (null != data)
{
foreach (XmlNode node in data)
{
XmlNode attr = node.SelectSingleNode("languageCode/@value");
if (null != attr)
{
string code = attr.Value;
if (2 == code.Length)
{
string threeLetter = LanguageConverter.GetThreeLetterCode(code);
if (null != threeLetter)
{
attr.Value = threeLetter;
MetadataEditorControl.UpdateDataContext(this as DependencyObject);
}
}
}
break; // just one
}
}
}