private void AddButton_Click(object sender, EventArgs e) { DataTable isSearch = _customerManager.SearchCustomer(nameTextBox.Text); if (isSearch.Rows.Count > 0) { // customerDataGridView.DataSource = _customerManager.SearchCustomer(searchTextBox.Text); MessageBox.Show("Name Exists"); } else { bool isAdded = _customerManager.AddInfo(nameTextBox.Text, contactTextBox.Text, addressTextBox.Text, itemComboBox.Text, Convert.ToInt32(quantityTextBox.Text)); MessageBox.Show("Saved"); } /* else * { * MessageBox.Show("Not Saved"); * }*/ }