public MainWindow()
 {
     InitializeComponent();
     if (File.Exists("Championships.xml"))
     {
         Containers.Read_Championships();
     }
     if (File.Exists("Players.xml"))
     {
         Containers.Read_Players();
     }
     if (File.Exists("Employees.xml"))
     {
         Containers.Read_Employees();
     }
     if (File.Exists("Clubs.xml"))
     {
         Containers.Read_Clubs();
     }
     if (File.Exists("Teams.xml"))
     {
         Containers.Read_Teams();
     }
     if (File.Exists("Coaches.xml"))
     {
         Containers.Read_Coach();
     }
     if (File.Exists("Results.xml"))
     {
         Containers.read_players_results();
     }
     if (File.Exists("Sponsers.xml"))
     {
         Containers.Read_Sponsor();
     }
     if (File.Exists("Admins.xml"))
     {
         Containers.Read_Admin();
     }
     if (File.Exists("Expenses.xml"))
     {
         Expense.read_expense();
     }
     if (File.Exists("Counter1.xml"))
     {
         Containers.Read_count1();
     }
     if (File.Exists("Counter2.xml"))
     {
         Containers.Read_count2();
     }
 }