In asp.net-mvc, how can I replicate creating this using javascript instead of serverside C#?

Question

I have an asp.net-mvc page and in my javascript in my view, I have this code which works perfect:

MyView.aspx

  <script type="text/javascript">

     var apps = <%= new JavaScriptSerializer().Serialize(Model.Apps) %>;
     SetupApplications(apps);

  </script>

(Apps is a array of strings).

I now need to change this to be called from an ajax method. I tried a few things but neither seemed to work. I am passing back a string array from server side controller action like this:

     return Json(new { 
            Apps = GetAppsStringArray()
        });

and on the client side javascript callback I call the same method:

  $.post("/MyController/MyAction", function (data) {
        SetupApplications(JSON.stringify(data.Apps) }
    , "json");

Do you see anything flawed in why these wouldn't be equivalent?

"but neither seemed to work" is not a good explanation of a problem. Consider using debugger (most browsers have at least one built in) and see what is going on. — Alexei Levenkov
– Alexei Levenkov, Commented Apr 21, 2014 at 0:20

Guffa · Accepted Answer · 2014-04-21 00:19:35Z

1

You are creating a JSON string from the object that was created by parsing the JSON string that you get in the response. As the SetupApplications function doesn't take a JSON string in the first version of the code, it shouldn't do that in the second either. Just pass the object to the function without turning it into JSON again:

$.post("/MyController/MyAction", function (data) {
  SetupApplications(data.Apps);
}, "json");

answered Apr 21, 2014 at 0:19

Guffa

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