public static async Task LoadEbooksAsync()
{
if (Ebooks.Count != 0)
{
return;
}
await _ebooksAsyncLock.WaitAsync();
try
{
var ebooks = await EbookService.LoadEbooksAsync();
await UIThread.RunAsync(() =>
{
foreach (var ebook in ebooks)
{
Ebooks.Add(ebook);
}
});
EbooksLoaded?.Invoke(null, new EventArgs());
}
finally
{
_ebooksAsyncLock.Release();
}
}
private void BtnDelete_OnClick(object sender, RoutedEventArgs e)
{
var res = MessageBox.Show("Dou you really want to delete the ebook?", "Delete Ebook", MessageBoxButtons.YesNo);
if (res != System.Windows.Forms.DialogResult.Yes)
{
return;
}
Ebook selectedEbook = (Ebook)ebookListView.SelectedItem;
var service = new EbookService();
service.DeleteEbook(selectedEbook.Id);
}
public AddWindow()
{
InitializeComponent();
EbookService = new EbookService();
}
