Getting undefined from a jsonresult in cascade dropdown RSS

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  viperassasin

  Member

  41 Points

  53 Posts

  Getting undefined from a jsonresult in cascade dropdown

  Jun 25, 2012 09:12 PM|LINK

  I have this jquery code that uses two dropdown boxes and a controller action to get the values for the next dropdown. the location dropdown gets the id for the contacts dropdown:

  $("#LocationDropDown").change(function () {
          var locationID = $(this).val();
  
          $.ajax({
              url: "/Application/GetBusinessContacts/" + locationID,
              data: { id: locationID },
              type: "POST",
              success: function (result) {
                  $.each(result, function (index, item) {
                      alert("Success:");
                      alert(result);
                      alert(result.toString());
                      $("#PrimaryContactDropDown").get(0).options.length = 0;
                      $("#PrimaryContactDropDown").get(0).options[0] = new Option("Select Contact", "");
                      $("#PrimaryContactDropDown").get(0).options[$("#PrimaryContactDropDown").get(0).options.length] = new Option(item.contactID, item.lastName);
                      //                    $("#PrimaryContactDropDown").append("'<option value=" + result.contactID + ">" + result.lastName + "</option>'");
                      //                     $("#PrimaryContactDropDown").append($("<option></option>").val(this['contactID']).html(this['last_name'])); ;
                  });
              },
              error: function (req, status, error) { alert("You failed"); },
              datatype:'json'
          });
      });

  Here is my action that i'm using:

  public ActionResult GetBusinessContacts(int id)
          {
              var contacts = _repository.GetBusinessContacts(id);
              //return Json(new SelectList(contacts.ToList()), JsonRequestBehavior.AllowGet);
              var theJson = Json(new SelectList(contacts, "contactID", "lastName"));
              var SelectListed = new SelectList(contacts, "contactID", "lastName");
              return Json(new SelectList(contacts,"contactID","lastName"),JsonRequestBehavior.AllowGet);
          }

  
  No matter if I use result. or item. I always get undefined. My json result from my action looks fine when I debug. As far as I can tell I'm just not digging into my json result correctly.

  • Edited by viperassasin on Jun 25, 2012 09:13 PM
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  viperassasin

  Member

  41 Points

  53 Posts

  Re: Getting undefined from a jsonresult in cascade dropdown

  Jun 25, 2012 09:51 PM|LINK

  A selectlist has a properties of .Text and .Value so it needed to be item.Text and item.Value.

  • Marked as answer by viperassasin on Jun 25, 2012 09:51 PM
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  Young Yang -...

  All-Star

  21741 Points

  1825 Posts

  Microsoft

  Re: Getting undefined from a jsonresult in cascade dropdown

  Jun 28, 2012 03:32 AM|LINK

  Hi

  Im so glad to hear that you solved this issue by yourself, and it is very appreciated for share the solution to us. Welcome to post any questions when you encounterd in the future programming.

  Regards

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