Create a dynamic RDLC report, with user-selectable parameters embedded within the report

The parameters must be modifiable from within the report itself. The solution of selecting them in the web interface and then passing the values to the report is not valid. The idea is to be able to create the report and have it function without the need for code in the web form.

Need a complete sample working with this features, to check how it can be implemented. ( if possible, not sure )