如何将字符串数组作为JSON参数传递

Question

I'm trying to pass a couple of arguments to my JSON callback, however the string[] argument remains null. How do I need to pass the string array from javascript to get this working?

Javscript function:

function jsonCallback(jsonCallbackID, argumentsArray) {
var argumentValues = [];
for (var i = 0; i < argumentsArray.length; i++) {
    argumentValues.push('' + $("#" + argumentsArray[i]).val());
}

// build request
var url = encodeURI("/DataEntry/JsonCallback/");
var data = ({ jsonCallbackID: jsonCallbackID, jsonCallbackValues: argumentValues, rndvalue: Math.floor(Math.random() * 10000000001) });

// fire request
$.getJSON(url, data, function (data) {});

The actual callback C# function:

        public JsonResult JsonCallback(int jsonCallbackID, string[] jsonCallbackValues)
    { }

This function does get called however, argument 'jsonCallbackValues' is null.

EDIT

To get this working I did the following:

var data = ({ jsonCallbackID: jsonCallbackID, jsonCallbackValues: argumentValues.toString(), rndvalue: Math.floor(Math.random() * 10000000001) });

And split the jsonCallbackValues string at "," to get the resulting array.

Answer 1

You can give a try to JSON API ...

var data = {
   jsonCallbackID:jsonCallbackID,
   jsonCallbackValues: JSON.stringify(argumentValues),
   rndvalue: Math.floor(Math.random() * 10000000001)
};
// your 
$.getJSON(url, data, function (data) {});

Answer 2

JSON is a serialized language, so you can't put objects inside.

You should build your array in JSON format:

jsonCallbackValues : ["value1", "value2"...]

Answer 3

Try like this

var data = ({ jsonCallbackID: jsonCallbackID, jsonCallbackValues: $.toJSON(argumentValues), rndvalue: Math.floor(Math.random() * 10000000001) });

I have used a JSON jQuery plugin from http://code.google.com/p/jquery-json/

In the controller method change it to string jsonCallbackValuesArray

Then use JavaScriptSerializer orJSON.Net to convert the JSON string into String []