/// <summary>
/// Look for a parent node of the given path (if it exists) and
/// ask it to refresh. This is necessary because filesystemwatcher
/// doesn't always work over network shares.
/// </summary>
public void WatchParentOf(string path)
{
string parent = Path.GetDirectoryName(path);
WatcherNode node = tree.NodeMap[parent] as WatcherNode;
if (node != null)
{
node.UpdateLater();
}
}
