Crystal Report parameters and selection formulas

Just installed Crystal Reports for VS.2010 and started using it for first time. I created parameters and formulas and it is working great. But for my real project, it is not flexible enough. Customers can limit reports in many, many ways including date,numbers etc. Do I have to create every single part cos i have no idea how the customer wants to limit his reports? At times >,<,= or range...is there anyway to create the formuals at run time? The fields the user can filter the report are known but the options are many. So my idea is create the parameters but set the formulas custom as the user wishes. Any idea?

If you have such a variation on what parameters to choose it may be possible to create a form that will update a parameter table that links to your report data to provide you with more flexibility.

Or get the customer to be a little more specific as to their requirements.

Creating parameters at runtime is no problem. I would suggest designing the report using a dataset as its datasource. This gives you a lot of flexibility when it comes to gathering data for the report. Try creating a form that gives the user the parameter options that they can choose from, then post a view of the form. This will make it easier for us to understand what your trying to achieve.