private void Log_in() { try { if (Txt_User.Text.Length <= 0 || Txt_Password.Text.Length <= 0) { throw new Exception("Any field is empty"); } RetriveServicesUsers_ = new RetriveServicesUsers(); var User = RetriveServicesUsers_.GetUserLogin(Txt_User.Text, Txt_Password.Text); UserName = User.UserName; Hide(); Home_ = new Home(); Home_.ShowDialog(); Clean(); Show(); } catch (Exception ex) { MessageBox.Show(ex.Message); } finally { RetriveServicesUsers_ = null; } }