public void CloseAppListWindow()
{
_AppList.Close();
_AppList = null;
AppListIcon.Source = new BitmapImage(new Uri(@"/Images/后台管理.png", UriKind.RelativeOrAbsolute));
}
private void OpenAppListWindow()
{
_AppList = new AppList(this);
_AppList.Show();
AppListIcon.Source = new BitmapImage(new Uri(@"/Images/后台管理_高光.png", UriKind.RelativeOrAbsolute));
}