private async void StockAdd_Click(object sender, RoutedEventArgs e)
{
var editWindow = new StocksEdit();
editWindow.ShowDialog();
await Restore();
}
private async void StockEdit_Click(object sender, RoutedEventArgs e)
{
var se = new StocksEdit();
se.StockItem = SelectedStock;
se.ShowDialog();
await Restore();
}