This step of the VIDEO TUTORIAL will showcase on how to create and implement Master/Detail scenario with dropdown lists and detailsview on MasterDetailsDetails.aspx page in the Filtering folder. The first dropdown list will display the list of categories. This first dropdown list will be configured with an ObjectDataSource control and will invoke the relevant methods from CategoriesBLL business object. For detailed information and source code for this step, please refer to the original article.

This step of the VIDEO TUTORIAL will introduce the viewer on how to add a second dropdown list to the MasterDetailsDetails.aspx webpage that would display relevant products in it based on the selection of a particular category in the first dropdown list on the web page. This second dropdown list will also be configured to retrieve records for display from an ObjectDataSource control that invokes a method from ProductsBLL business object. For detailed information and source code for this step, please refer to the original article.

This step of the VIDEO TUTORIAL will outline on how to display the detail product information in a DetailsView data web control. The DetailsView control will be bound to an ObjectDataSource control that invokes the GetProducstbyProductID method of the ProductsBLL logic layer. This method takes the ProductID as a parameter which will be obtained from the selected product category of second dropdownlist on the webpage. Once a selection is made in the second dropdown list, a post back occurs and the relevant product information will be displayed in the DetailsView data web control on the web page after invoking the ObjectDataSource’s selecting event handler. Finally, an introduction on the sequence of events that happen during the life cycle of the DetailsView’s ObjectDataSource control will be demonstrated.
For detailed information and source code for this step, please refer to the original article.