title: jqGrid Add Row is not working
body: <p>The Get, Edit and Delete all work fine.  But add will not call into my ActionResult method.  I am using the inline add that displays a modal form for new record values.  There seem to be very few examples of how this works with the pager/form method that is provided in the latest jqGrid release.  What am I missing for add/insert here?</p>
  
  <p>html:</p>
  
  <pre><code>            $("#grid").jqGrid({
                  url: 'ABC.Admin/CourseAdmin/GetLocationData/',
                  datatype: 'json',
                  jsonReader: { repeatitems: false },
                  mtype: 'GET',
                  colNames: ['Location Id', 'Name', 'Address Line 1'],
                  colModel: [
                { name: 'LocationId', index: 'LocationId', width: 40, key: true },
                { name: 'LocationName', index: 'LocationName', width: 150, editable: true },
                { name: 'AddressLine1', index: 'AddressLine1', width: 150, editable: true },
                ],
                  pager: jQuery('#pager'),
                  rowNum: 20,
                  sortname: 'Name',
                  sortorder: "asc",
                  viewrecords: true,
                  caption: '***Testing***',
                  height: 200,
                  loadonce: true, // needs to be true for client side paging to work
                  autowidth: true,
                  loadtext: 'Loading...'
              })
              $("#grid").jqGrid('navGrid', '#pager', { edit: true, add: true, del: true },
              { // edit options 
                  url: 'ABC.Admin/CourseAdmin/SaveLocation/',
                  closeAfterEdit: true
              },
              { // add
                  url: 'ABC.Admin/CourseAdmin/Create/'
              },
              { //delete
                  url: 'ABC.Admin/CourseAdmin/DeleteLocation/',
                  closeOnEscape: true
              }
          );
  </code></pre>
  
  <p>controller:</p>
  
  <p><strike>        public ActionResult Create(int id, string locationName, string addressLine1)
  </strike></p>
  
  <pre><code>[HttpPost]
  public ActionResult CreateLocation(string oper, string id, string locationName, string addressLine1)        {
              //Models.LocationProvider lp = new Models.LocationProvider();
              //bool saved = lp.InsertLocation(location);
              bool saved = false;
              if (!saved)
              {
                  Response.StatusCode = 500;
                  return Content("Record not saved!");
              }
              else
              {
                  return Json(false);
              }
          }
  </code></pre>