i have 2 parameters: country and city, and i need view all city list from db, is all ok i can do this, but i neet too drow city list where country = my first parameters(country). maybe some1 can help me?
What I can understand out your question is that,
you need to cascade the parameters that means, that if you select the first parameter that is the country you see the respective cities of that country.
For this you can refer to an article I wrote - http://ankurthetechie.blogspot.in/2014/03/cascading-parameters-in-jasper...
Also you could refer a tutorial video - https://www.youtube.com/watch?v=N7pBJktoSt8&list=UU2gcAOmUbXJH6OBJmS627sQ
Hope you find them useful,