NEED Help in crystal reports using C#.

Question

Hello frnds, I need a help in creating crystal report in C#. ================================== I am working in windows applications. I am passing 2 date fields and one alphanumeric field (bank account number). It will be taken to stored procedure in SQL server. The result will be passed back to the crystal report document and displayed in the viewer. But when i generate report, it is asking for input parameters..the it is showing the report.. In vb.net the values can be passed using "discretevalues" in crystal report. how to do the same in C#. Some one plse help me in solving this. karthik.