jqgrid: multiselect and disable check (conditional)

Question

I love jqGrid but sometimes things seem more complicated than they should be.
What I would like to achieve is to have a checkbox on each row so that a user can choo

Answer 1

Great answer from Oleg, I would also add code to deselect disabled rows, complete onSelectAll function below.

onSelectAll: function(aRowids,status) {
    if (status) {
        // uncheck "protected" rows
        var cbs = $("tr.jqgrow > td > input.cbox:disabled", grid[0]);
        cbs.removeAttr("checked");

        //modify the selarrrow parameter
        grid[0].p.selarrrow = grid.find("tr.jqgrow:has(td > input.cbox:checked)")
            .map(function() { return this.id; }) // convert to set of ids
            .get(); // convert to instance of Array

        //deselect disabled rows
        grid.find("tr.jqgrow:has(td > input.cbox:disabled)")
            .attr('aria-selected', 'false')
            .removeClass('ui-state-highlight');
    }
}