private void saveButton_Click(object sender, EventArgs e) { Company comObj = new Company(); comObj.CompanyName = CompanyNameTextBox.Text; if (comObj.CompanyName == "") { MessageBox.Show("Empty value not accepted !"); return; } CompanyManager comMangObj = new CompanyManager(); bool companyInfo = comMangObj.SaveCompInfo(comObj); if (companyInfo == true) { MessageBox.Show("Company Name Saved !"); } else { MessageBox.Show("Company name already exist !"); return; } DataTable DT = comMangObj.CompanyDataTable(); companyDataGridView.DataSource = DT; editButton.Enabled = true; }