private void applCmb_SelectedIndexChanged(object sender, EventArgs e) { if (applCmb.SelectedIndex == 0) { aplSubCmb.Items.Clear(); aplSubTyp.Text = "Change Type"; aplSubCmb.Items.AddRange(new String[] { "from Domestic to Industrial", "from Industrial to Domestic" }); aplSubCmb.Text = "Select change"; makeVisible2(); } else if (applCmb.SelectedIndex == 1) { aplSubTyp.Text = "Enlargement Type"; aplSubCmb.Items.Clear(); aplSubCmb.Items.AddRange(new String[] { "Type 1", "Type 2", "Type 3" }); aplSubCmb.Text = "Select enlargement type"; makeVisible2(); } else if (applCmb.SelectedIndex == 2) { aplSubCmb.Visible = false; aplSubTyp.Visible = false; subm3.Visible = false; refNum.Visible = false; Contact ct; if (isCustomer) { ct = Contact.createContact(accountNo); } else { ct = Contact.createContact(); } ct.Visible = true; } }