public void Initialize()
{
_viewModel = new MainWindowViewModel();
_view = new MainWindow {
DataContext = _viewModel
};
MainWindowNavigator.NavFrame = _view.NavigationFrame;
MainWindowNavigator.ButtonMethod = SetButtons;
_viewModel.NavChange = new RelayCommand(ExecuteNavChangeCommand);
_viewModel.NewCommand = new RelayCommand(MainWindowNavigator.OnNew);
_viewModel.EditCommand = new RelayCommand(MainWindowNavigator.OnEdit);
_viewModel.SaveCommand = new RelayCommand(MainWindowNavigator.OnSave);
_viewModel.DeleteCommand = new RelayCommand(MainWindowNavigator.OnDelete);
_viewModel.IsAdmin = ApplicationData.User.IsAdmin;
RegisterControllers();
MainWindowNavigator.InitializePages();
_viewModel.UserPages = MainWindowNavigator.UserPages;
_viewModel.AdminPages = MainWindowNavigator.AdminPages;
MainWindowNavigator.NavigateToFirstPage();
_view.ShowDialog();
}