Master/Detail Filtering With Two DropDownLists:
Step 2-Displaying the Selected Category's Products in a Second DropDownList

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.