void HandleItem(object sender)
{
ToolStripMenuItem item = null;
if (sender is ToolStripMenuItem)
{
item = (ToolStripMenuItem)sender;
}
if (item != null)
{
TextNode node = (TextNode)item.Tag;
node.Language = (SupportedLanguage)SupportedLanguage.Parse(typeof(SupportedLanguage), item.Text);
}
}