use a data structure return from c# in javascript

Question

I have a piece of javascript posting to my controller like this:

var url = '/Account/getCols';
var formData = { colName: colName }
$.post(url, formdata, function (data, textstatus) {

etc...

where Account is the controller getCols is a method within that controller. The method returns a list like so:

public List<string> getCols(string colName)
{
    //do some stuff here
    List<string> l = new List<string>;
    //do some more stuff like adding and other manipulation here
    return l;
}

How do I use the list when it is returned within my javascript? or should I use some returned Json? or anything else? Sorry, I am rather new to MVC and still looking APIs etc... Would be grateful for help.

Serializing it as JSON would be the natural way to go.

Christofer Eliasson
– Christofer Eliasson

2014-01-07 14:53:26 +00:00
Commented Jan 7, 2014 at 14:53 — Christofer Eliasson
– Christofer Eliasson, Commented Jan 7, 2014 at 14:53

Christofer Eliasson · Accepted Answer · 2014-01-07 15:23:30Z

2

Serializing it as JSON would be the natural way to go. Something like this should do it, if getCols is a controller action:

public ActionResult getCols(string colName)
{
    //do some stuff here
    List<string> l = new List<string>;
    //do some more stuff like adding and other manipulation here
    return Json(l);
}

If the action is called through HTTP GET, you will have to allow that, since only POST is allowed by default. Something like this:

return Json(l, JsonRequestBehavior.AllowGet);

edited Jan 7, 2014 at 15:23

answered Jan 7, 2014 at 14:55

Christofer Eliasson

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