/// <summary>
/// Opens new form
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void NewInvoiceBut_Click(object sender, EventArgs e)
{
//Creates new form and closes the old one
this.InvoiceFormL = new InvoiceForm();
this.Hide();
this.InvoiceFormL.ShowDialog();
this.Close();
}
private void PayBut_Click(object sender, EventArgs e)
{
this.InvoiceForm = new InvoiceForm(this.cartItems);
this.InvoiceForm.ShowDialog();
}