Question

I have a jqgrid with a checkbox column. when checkbox is pressed i need to update database.

I can retrieve id from my jqgrid, but when I’m sending it further to my controller I retrieve id = null

here is the code in load complete function

       var iCol = getColumnIndexByName($(this), 'Aktiv'), rows = this.rows, i,
           c = rows.length;

       for (i = 0; i < c; i += 1) {
           $(rows[i].cells[iCol]).click(function(e) {
               var id = $(e.target).closest('tr')[0].id,
                   isChecked = $(e.target).is(':checked');

               alert('clicked on the checkbox in the row with id=' + id +
                   '\nNow the checkbox is ' +
                   (isChecked ? 'checked' : 'not checked'));


               $.ajax({
                       mtype: "POST",
                       url: '@Url.Action("Action")',
                        data: { actionparameter: id },
                       contentType: "application/json; charset=utf-8",
                       dataType: "json",
                       async: false,
                       cache: false

          }); 
           ;

Answer 1

if alert shows not null for the id you should verify your server code. Depend on your configuration you could need to use JSON.stringify method from json2.js like

data: JSON.stringify({actionparameter: id})

or just do no JSON specific prameters in the $.ajax call.