private void MappedNode_Changed(WixDirectoryNode oldValue, WixDirectoryNode newValue)
{
if (oldValue != null)
{
UnmappedNodes.Add(oldValue);
_wixProject.UnmapDirectory(Directory);
}
if (newValue != null)
{
UnmappedNodes.Remove(newValue);
_wixProject.MapDirectory(Directory, newValue);
}
}