Question

I have an action method which have two string arrays as parameters, i am posting this action method with ajax post method, i am having one problem, On controller i got both arrays data same
but i am making both arrays with different data(one contains code other contains name)
below is my code

 public ActionResult SectionBook(string[] cs,string[] cname)
{
}

var CourseSection=new Array();
var CourseName=new Array();
 $('a p-button').live('click', function () {    
        var schoolCourseId = $(this).attr('id');
        CourseSection.push(schoolCourseId);
        CourseName.push($(this).html().split("(")[0]);        
    });


 $('#btnSubmit').live('click', function () {

$.ajax({
            type: 'POST',
            contentType: 'application/json; charset=utf-8',
            url: '/MyController/SectionBook',
            //            dataType: 'json',
            data: $.toJSON(CourseSection, CourseName),
            success: function (result) {                
                window.location.href = '/MyController/SectionBooks'
            },
            error: function (xhr, ajaxOptions, thrownError) {
                alert(xhr.status);
                alert(thrownError);
            },
            async: false,
            cache: false
        });

});

i have debugged the JS code and both arrays are having different values here but in controller cs and cname contains same data

Answer 1

I think the problem is that the toJSON method only takes one parameter and ignores the rest. So by doing
$.toJSON(CourseSection, CourseName)
You are only creating a JSON object with the values of the first array passed in.
If you wrap the 2 arrays in and object however like this

var CourseSection = new Array();
var CourseName = new Array();
CourseSection.push("cs1");
CourseSection.push("cs2");
CourseSection.push("cs3");

CourseName.push("cn1");
CourseName.push("cn2");
CourseName.push("cn3");

var newObj = {
 cn:CourseName,
 cs:CourseSection        
};

and then convert the newObj object to JSON with

JSON.stringify(newObj)

or

 $.toJSON(newObj)

You should be able to retrieve the values from both arrays in the controller using JavascriptSerializer