JqGrid UserData With Numeric Type Instead Of Object

Just want to confirm something here. Is it possible to use jqGrid's userData with a javascript type directly (as opposed to using an object with field(s))? If I modify the example

Solution 1:

userdata part of the JSON input for jqGrid should be object. If you need to return scalar inside of userdata you should use something like

"userdata": { mycounter: 0 }

and then use

var userdata = $("#grid_id").jqGrid("getGridParam", "userData");
if (userdata) {
    alert(userdata.mycounter);
}

Solution 2:

OK so after a bit of exploration, it seems the problem is with the value 0. Other values (I tried 1) come back fine, but when it's 0 I get {}.

I also tried changing the reader to use a function instead of the name of the field:

jsonReader: {
  ...
  userdata: function(json) { return json.response.userdata; },
  ...
}

But the behaviour is exactly the same: {} when the value is 0, 1 when it's 1.

I also updated to 4.4.4 but it doesn't change it.

I don't know if this qualifies as a bug or a non-documented restriction, but I'll return an object with a numerical field instead of the numerical value itself, and it will solve the issue.