Building a parameter lookup using business logic

In the last two recipes, there was no user interaction, but real-time scenarios will demand that a user input be taken. Adding a parameter doesn't make it usable, as the user might be left clueless about what the possible values are. This is because there is no lookup available for the external data. This recipe will show you how a dataset can be used just for the purpose of creating parameter lookups. The parameter here will be the category field that indicates the geographical location of the country. Apart from adding a parameter, this recipe will also discuss how to show the report parameter lookup from business logic. The report built through this recipe will provide a parameter category and the lookup for the parameter through which the user can view the exchange rate data only for the selected category.

Getting ready

This recipe requires the machine on which you work to be connected to the Internet. The XML feed (http://themoneyconverter...