public void issueToken() { tokens(); opd opd = new opd(); opd.issueToken(username, (Convert.ToInt32(label8.Text) + 1).ToString(), textBox1.Text, comboBox1.Text, comboBox3.Text, code.ToString()); try { //printPreviewDialog1.ShowDialog(); printDocument1.Print(); } catch (Exception Ex) { MessageBox.Show(Ex.Message + "\n\nPrinter Not Connected Properly!! Please Check that and Issue the token!!"); } loadData(); clearData(); tokens(); }