private void adminLoginButton_Click(object sender, EventArgs e) { new CommonValidation().CheckForInternetConnection(this); AdminDataAccess adminDataAccess = new AdminDataAccess(); Admin admin = adminDataAccess.GetAdmin(adminLoginPhoneTextBox.Text, adminLoginPassTextBox.Text); if (admin.AdminFirstName != null) { this.Hide(); var dminLanding = new AdminLanding(admin); dminLanding.Closed += (s, args) => this.Close(); dminLanding.Show(); } else { MessageBox.Show("Account Not Found!\nPlease Re-Check Phone Number or Password.", "Error"); } }