Posting an array to MVC3 controller using ajax post

Question

How can I post an array of elements to a controller action using jQuery Ajax post.

This is how I am trying, but my controller recieving a null array.

function dipatchAllocations() {
            // unSelected is an array of items of type int.
            if (unSelected.length == 0) {
                alert("Please select a line item to be dispatched.");
                return;
            }
            debugger;
            $.ajax({
                type: 'POST',
                url: '/Batch/SetToDispatch',
                data: '{ "allocationId[]" : "[' + unSelected + ']","batchId" : "' + @Model.Id + '" }',
                contentType: "application/json; charset=utf-8",
                traditional: true,
                success: updateView,
                error: errorInSubscribing
            });
        };

And this is my controller

[HttpPost]
public ActionResult SetToDispatch(long[] allocationId,long batchId)
{   
  // Perform some action here
   return View("_ReadyToDispatchItems",model);
}

Can somebody advice me what I am missing.

Thanks

Have you tired removing "[]" after allocationId

ankur
– ankur

2012-11-29 05:14:14 +00:00
Commented Nov 29, 2012 at 5:14 — ankur
– ankur, Commented Nov 29, 2012 at 5:14
Can you show unSelected declaration?

testCoder
– testCoder

2012-11-29 05:28:11 +00:00
Commented Nov 29, 2012 at 5:28 — testCoder
– testCoder, Commented Nov 29, 2012 at 5:28

testCoder · Accepted Answer · 2012-11-29 05:27:45Z

1

Try this:

var data = { allocationId : unSelected, batchId : @Model.Id };
$.ajax({
                type: 'POST',
                url: '/Batch/SetToDispatch',
                data: JSON.stringify(data),
                contentType: "application/json; charset=utf-8",
                traditional: true,
                success: updateView,
                error: errorInSubscribing
            });

answered Nov 29, 2012 at 5:27

testCoder

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Comments

Adam Tuliper · Accepted Answer · 2012-11-29 01:28:27Z

0

Your json syntax seems to be off, no [] required after allocationId[] See: http://www.w3schools.com/json/json_syntax.asp for the syntax on arrays

answered Nov 29, 2012 at 1:28

Adam Tuliper

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Comments

Anto king · Accepted Answer · 2012-11-29 05:10:29Z

You can simply give the data to controller as query string it will work

 $.ajax({
            type: 'POST',
            url: '/Batch/SetToDispatch/' + unSelected + ',' + batchId
            dataType: 'json',
            contentType: "application/json; charset=utf-8",
            traditional: true,
            success: updateView,
            error: errorInSubscribing
        });

Its comma seperated you can split it in controller and use it. Hope it helps

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