private void button1_Click(object sender, EventArgs e) { var sForm = CreditCardAuthorizeForm.Instance(_frmMain); sForm.Show(); sForm.Activate(); }
public static CreditCardAuthorizeForm Instance(MainForm mainForm) { if (sForm == null) { sForm = new CreditCardAuthorizeForm(mainForm); } else { sForm.Close(); sForm = new CreditCardAuthorizeForm(mainForm); } return(sForm); }