private void btnEnroll_Click(object sender, EventArgs e) { try { var address = Service.GetRemoteAddressWs(); if (address == null || address.Equals("")) { MessageBox.Show(Constants.WS_MSG_ERROR, @"Error", MessageBoxButtons.OK, MessageBoxIcon.Stop); return; } BeginWork(); var frmFingerPrints = new FrmFingerPrints(_service); frmFingerPrints.ShowDialog(this); } finally { EndWork(); } }