Recently our team came across a situation where our job was to retrieve ArrayList in a page requested by flex application using HttpService.Which are accessed using **Request[keyName]
JSON allows us to serialize a object and send across a page in string format.All we need to do is to perform Deserialization on the requested page.
This is the sample code which demonstrates the use of JSON to send arraylist to another page.
The code below contains 2 arraylist which need to be send on another page.The arraylist are serialized and sent to different page with the help of querystring.
You can download sample code from here.