modernkeepass/ModernKeePass/MainPage.xaml.cs

using System;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

using ModernKeePass.Pages;
using ModernKeePass.ViewModels;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace ModernKeePass
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }
        
        private async void Button_Click(object sender, RoutedEventArgs e)
        {
            var picker = new Windows.Storage.Pickers.FileOpenPicker();
            picker.ViewMode = Windows.Storage.Pickers.PickerViewMode.List;
            picker.SuggestedStartLocation =
                Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
            picker.FileTypeFilter.Add(".kdbx");

            var file = await picker.PickSingleFileAsync();
            if (file != null)
            {
                // Application now has read/write access to the picked file
                //DataContext = new DatabaseVm(file);
                ((App)Application.Current).Database = new Common.DatabaseHelper(file);
                var homeVm = DataContext as HomeVm;
                homeVm.Visibility = Visibility.Visible;
                homeVm.NotifyPropertyChanged("Visibility");
            }
        }
        
        private async void openBbutton_Click(object sender, RoutedEventArgs e)
        {
            /*var database = DataContext as DatabaseVm;
            database.Open();
            if (database.IsOpen)
                Frame.Navigate(typeof(GroupDetailPage), database.RootGroup);*/
            var homeVm = DataContext as HomeVm;
            var app = ((App)Application.Current);
            homeVm.ErrorMessage = await app.Database.Open(homeVm.Password);
            if (!app.Database.IsOpen) homeVm.NotifyPropertyChanged("ErrorMessage");
            else Frame.Navigate(typeof(GroupDetailPage), app.Database.RootGroup);
        }

        private void saveBbutton_Click(object sender, RoutedEventArgs e)
        {
            var database = DataContext as HomeVm;
            ((App)Application.Current).Database.Save();
        }
    }
}