Apologies if this question has been answered before.
Though the answers I've seen look correct according to jqGrid documentation, I have been completely unable to get the "editData" parameter of "editGridRow" to work.
I've tried setting editData through "navGrid" edit options:
$("#myGrid").jqGrid(
  "navGrid",
  "#pager",
  {edit:false,add:false,del:false}, //options
  {editData:{myparam:function(){return "myval"}}}, // edit options
  {}, // add options
  {}, // del options
  {} // search options
  );
and through "editGridRow":
$("#myGrid").jqGrid('editGridRow',rowid, {
   editData:{myparam:function(){return "myval"}},
   height:240,
   reloadAfterSubmit: true,
   editCaption:'Edit Record',
   bSubmit:'Save',
   url:'someurl.php',
   closeAfterEdit:true,
   viewPagerButtons:false
});
My additional POST data is just NOT showing up on POST.
Any idea what I may be doing wrong?
Thanks!