/// <summary> /// Add /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnAdd_Click(object sender, EventArgs e) { if (VerificationHelper.IsInputBoxEmpty(txtProductTypeName)) { return; } if (productTypeService.IsProductTypeNameExisted(txtProductTypeName.Text.Trim())) { MessageBox.Show("This " + txtProductTypeName.Text.Trim() + " already exists."); } else { var productType = new ProductType() { ProductTypeName = txtProductTypeName.Text }; productTypeService.Add(productType); } ResetUIInputtdData(); }