Can Dataset change dynamically depending on a parameters.

Is it possible to dataset change dynamically depending on a input parameters in ssrs 2005.

I need to create a report  in which it takes two parameters as input and display the output.The Output will contain the table report,bar charts.

For each combination of input the output will be the same that is table report,bar chart but the data inside this table report and bar charts changes for each combination.So totally I need to create 30 reports with different input parameter but the output of all the 30 reports will be similar i.e it will be in the table report and bar charts.

So can any one say Whether how to change the dataset dynamically depending on the parameters.