private void login_bt_Click(object sender, EventArgs e) { try { if (login_tb.Text == "" || password_tb.Text == "") { MessageBox.Show("Please Give Your UserId and Password", "Warning!!"); } else { credService = new CredentialService(); Credential user; user = credService.GetUser(Convert.ToInt32(login_tb.Text), password_tb.Text); if (user != null) { Home h = new Home(user); h.Show(); this.Hide(); } else { MessageBox.Show("User Not Found. Please Try Agian", "Error"); login_tb.Text = ""; password_tb.Text = ""; } } } catch (Exception ex) { MessageBox.Show(ex.StackTrace); } }