public void CosCumparaturi(object obj)
{
if (File.ReadLines(@"..\..\..\Comanda.txt").Any(line => line.Contains(",")))
{
Cos cos = new Cos();
cos.ShowDialog();
}
else
{
MessageBox.Show("Nu ati adaugat nimic la comanda!", "Warning", MessageBoxButton.OK, MessageBoxImage.Warning);
}
}