how to use caml queries for optional search values in sharepoint

Question

I have a custom search webpart in Sharepoint which have 7 filters. I am getting data from a Sharepoint list using CAML Query. I want to write a generalized SPQuery which will filter out the data based on the search parameters. The search parameters are optional . If user enters any 2 parameters then I need to get data corresponding to those 2 parameters specified. How do I use CAML Query to achieve this? I am unable to think of a generalized approach for generating my caml query based on search parameters..

Answer 1

actually solved the issue by writing logic to dynamically generate the spquery