After adding the new report parameter, the CustomerListByState query string must be updated by referencing the new report parameter (in this tutorial, State). This is performed from the Data tab in the design environment.
To modify the Customers query string:
Select the Data tab in the design environment.
Select the appropriate dataset from the Dataset drop-down listbox (in this tutorial, the Customers dataset is selected).
Open the Generic Query Designer and update the string as appropriate.
Select the Preview tab from the report design environment.
Note that the report now prompts for the customer’s state and includes the View Report button for executing each new customer state query.
