I'm trying to pass url parameters FirstName and LastName with a submit form. It works well except I don't know how to access the viables to add them to the filter.
You can use params["firstname"].value to access URL parameter at run time.screenshot
Find sample rptdesign here. https://drive.google.com/file/d/1r7VvSBDCFUGp5gzab5_CflJ_ArvQA8VA/view