jquery - Why does this technique not work to enable my "editable:true" column to sort properly? -

question: how enable "editable:true" column sort properly?

the following link seemed provide "onclick" handler function allow editable columns sorted. (https://stackoverflow.com/a/9290716/652078)

but, when using it, receive following error when click on column:

'handler' null or not object message when click on column

below, i've provided column definition , "click" handler code borrowed above link.

-is there out-of-date regarding solution prevent working?

-or, column definition preclude such "onclick" handler working?

thanks help!

here column definition:

    {         name: 'rectype',                    label: 'rectype',                    index: 'rectype',                                                        width: 100,          fixed: true,           keys:   true,              editable: true,          edittype: "select",           editoptions: {value: rectypelist},          stype: 'select',          formatter: 'select'     },        

the click event function (technique described in above link)...

    $(".ui-jqgrid-htable th").click(function()  //.on('click', 'th', function(e)   //      {         var $grid = contentb1grid;         $.each($grid[0].grid.headers, function () {             var $th = $(this.el), i, l, clickhandler, clickhandlers = [],                 currenthandlers = $._data($th[0], "events"),   //$th.data('events'),                 clickbinding = currenthandlers.click;              if ($.isarray(clickbinding)) {                 (i = 0, l = clickbinding.length; < l; i++) {                     clickhandler = clickbinding[i].handler;                     clickhandlers.push(clickhandler);                     $th.unbind('click', clickhandler);                 }             }             $th.click(function () {                 var p = $grid[0].p, savedrow = p.savedrow, j, len = savedrow.length;                 if (len > 0) {                     // there rows in cell editing or inline editing                     if (p.celledit) {                         // savedrow has form {id:irow, ic:icol, name:nm, v:value}                         // can call restorecell or savecell                         //$grid.jqgrid("restorecell", savedrow[0].id, savedrow[0].ic);                         $grid.jqgrid("savecell", savedrow[0].id, savedrow[0].ic);                     } else {                         // inline editing                         (j = len - 1; j >= 0; j--) {                             // call restorerow or saverow                             //$grid.jqgrid("restorerow", savedrow[j].id);                             $grid.jqgrid("saverow", savedrow[j].id);                         }                     }                 }             });             l = clickhandlers.length;             if (l > 0) {                 (i = 0; < l; i++) {                     $th.bind('click', clickhandlers[i]);                 }             }         });        }); 

my editable column sorting "correctly"...

recall column sorted editable "dropdown" (or listbox) column.

i jumping thru hoops - based on various posts regarding inability sort on "editable" columns. included try @ using snippet 1 of oleg's posted answers addressing such issue.

but, turns out, real problem sorting performed upon string value of dropdown list "key" value, rather display "value". (fwiw, "key" happens numeric code).

--so, again, $(".ui-jqgrid-htable th").click(function() trying irrelevant actual problem. (although, still don't know why getting "handler null or not object" javascript error)

and, so, answers question to "why technique not work enable “editable:true” column sort properly?".

now, need research question : how configure editable listbox column - sorting performed upon "display" value, rather "key" value?

update: solved issue (answered own question, again) in how can configure jqgrid column definition sort performed on listbox entry's "display" value, rather "key" value?

--in case, thank took time @ least view earlier posted question.

:-)