how to fetch data from response.redirect in ajax call

hi to all,
 
I want to fetch records from webservice and displayed it by ajax call.
so I call web method in aspx page and in passing json data to the url of that ajax call page
but its not fetching that data..
 
i know i am going wrong some where but i can't detect it
here is my code 
 
$.ajax({
type:
url: methodname.aspx,
dataType:
data: {},
contentType:
success:
 
"GET","json","application/json; charset=utf-8", Go to the complete details ...