private void listview_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var si = (ListViewItem)listview.SelectedItem;
var name = si.Content;
var selectedNote = notes.FirstOrDefault(x => x.Name == name.ToString());
if (ServiceCalls.DeleteNote(context.UserContext.UserName, context.UserContext.Password, name.ToString()))
{
listview.Items.Remove(selectedNote);
Frame.Navigate(typeof(ListDelete), context);
}
}