app.g.cs的显示问题

今天在vs2008的平台下，调试wpf程序，发现在Blend中可以随意的设置启动项，但是vs不行，等我添加了一段网上找到的代码：

public static void Main()
        {
            App app = new App();
            app.ShutdownMode = ShutdownMode.OnExplicitShutdown;
            app.Run();
        }
        private void win_Closed(object sender, System.EventArgs e)
        {
            Application.Current.Shutdown();
        }
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);

            Window winDlg = new Window();
            winDlg.ShowInTaskbar = false;
            winDlg.WindowStartupLocation = WindowStartupLocation.CenterScreen;

            bool? dlgResult = winDlg.ShowDialog();

            if (dlgResult.Value == true)
            {
                Window winmain = new Window();
                this.MainWindow = winmain;
                winmain.WindowStartupLocation = WindowStartupLocation.CenterScreen;
                winmain.Closed += new EventHandler(win_Closed);
                winmain.Title = "欢迎使用广药交互式教学平台";

                winmain.Show();
            }
            else
            {
                Application.Current.Shutdown();
            }
        }

这时候出现问题了，一个在wpf项目中没显示的app.g.cs跑出来了,原来设置启动项的地方这里就有了，但是他是在Bin/Debug下面项目中找不到的！记住了！