how to pass an array using parameterMap to controller

[charan]

hi,
I want to pass an array from view to the controller using parameterMap as shown below
parameterMap:
                        function (data, options) {
                            if (options === "read") {
                                val = sessionStorage.getItem("value");           // contains array
                                return kendo.stringify(val);

                            }
                        }
but i am not able to retrieve those values in the controller.can u tell me how to pass an array from view to the controller using parametermap.