This chapter and the following chapter (Chapter 12, “Report Parameters”) look more closely at data retrieval and parameters. The combination of these two items helps to add incredible flexibility to SSRS.
Parameters are values you can pass into the report to help make rendering decisions at runtime. Users can get prompted to input parameters at runtime. Leveraging data sets, you can draw a list of valid parameter values from your data sources. You can even make parameters dependent on each other in such a way that the lists of values for
ParameterB are derived as a function of