SelectedValue property of each DropDownList placed inside the rows of GridView control can be set using the VB.net code at server side with the help of value of order_status_id field of tbl_orders and tbl_order_status. As we discussed in the previous tutorial ASP.Net Gridview DropdownList Column order_status_id is a relational foreign key of tbl_orders table and primary key of tbl_order_status table.
