Handling BLL- and DAL-Level Exceptions in an ASP.NET Page:
Step 1- Creating an Editable GridView of Products

This step of the VIDEO TUTORIAL will demonstrate on how to handle the exceptions that are generated in business logic and data access layers of Data Tutorial project. In order to show case this behavior, an editable GridView control is added to the ErrorHandling.aspx page in the project. A subset of the product information that includes productName, UnitPrice, UnitsInStock and productID are displayed in the GridView’s display interface in the design mode after applying the relevant format changes. However, only name, unitprice and units in stock will be editable. To commit the changes through the editing interface of the GridView control, an overload of the Update product method that accepts four input parameters as productID, productName, UnitPrice and UnitsInStock is added to the business logic layer. For detailed information and source code for this step, please refer to the original article.