private void AddNew() { MailServer mailServer = new MailServer(); string message = Language.Resource.Message; Security security = new Security(); bool check = mailServer.CheckExists(tbxName.Text); if (check) { MessageBox.Show(Language.Resource.NameExists, message); } else { int Num; bool isNum = int.TryParse(tbxPort.Text, out Num); if (isNum) { mailServer.Name = tbxName.Text; mailServer.Server = tbxServer.Text; mailServer.Username = tbxUsername.Text; mailServer.Password = tbxPassword.Text; mailServer.Port = Num; int result = mailServer.Add(); if (result == 1) { frmManager manager = (frmManager)Application.OpenForms["frmManager"]; manager.SelectTab("tabMails"); this.Close(); } } else { tbxPort.Focus(); MessageBox.Show(Language.Resource.NotNumber, message); } } }