private void UpOneLevel_Click(object sender, RoutedEventArgs e)
{
if (currentPath.EndsWith(":"))
{
FileFolderList.Items.Clear();
DriveList.Focus();
DriveList.SelectedIndex = -1;
SelectedPath.Text = "";
parentPath = "";
}
else
{
if (currentPath.Contains("\\"))
{
currentPath = currentPath.Substring(0, currentPath.LastIndexOf('\\'));
}
ListFilesAndFolders();
}
SelectedPath.Text = parentPath;
}
