SHJX_GM/SHJX.Service.Shell/Flowchart/Common/ShellSwitcher.cs

using System.Linq;
using System.Windows;
using System.Threading;
using System.Reflection;
using SHJX.Service.Common.ElementHelper;

namespace PrismMetroSample.Shell.Common
{
    public static class ShellSwitcher
    {
        public static void Switch<TClosed, TShow>() where TClosed : Window where TShow : Window, new()
        {
            Show<TShow>();
            Closed<TClosed>();
        }

        public static void Show<T>(T window = null) where T : Window, new()
        {
            var shell = Application.Current.MainWindow = window ?? new T();
            shell?.Show();
        }

        public static void Closed<T>() where T : Window
        {
            var shell = Application.Current.Windows.OfType<Window>().FirstOrDefault(window => window is T);
            shell?.Close();
        }
    }
}