jqGrid prevent pager navigation?

We use a custom formatter to output html form text boxes. In the case that a user has entered in data and they hit the next/prev button, we want to tell them "you've edited data, hit ok to stay on this page and save your data". How can you do this?

The 'onPaging' event fires when you use the pager but it d开发者_运维技巧oesn't seem to let you prevent the pagination from occuring.

Update: Current workaround:

var currPg = 1;
var dirty = 'false';


  $("#list").jqGrid({
    ...
    onPaging: function (b) {
        var nextPg = $("#list").getGridParam("page");

        if (dirty == 'false') {
           currPg = nextPg;
           return;
        }


        $( "#dialog-confirm" ).dialog({
        modal: true,
        buttons: {
            "Stay on current page": function() {
                $( this ).dialog( "close" );
            },
            "Change page": function() {
                $( this ).dialog( "close" );
                reloadGrid($("#list"), null, nextPg, 'false');
            }
        }
        });

        $("#list").setGridParam({page:currPg}); //Workaround - jqGrid still increments the page num even when we return stop so we have to reset it (and track the current page num)    
        return 'stop';
    },

Update 2: Bug logged here.

If the function onPaging returns 'stop' then the pagination will be stopped.

As per my observation onPaging event works well in latest jqgrid plugin.While if we use previous jqgrid plugin ( before 3.8 version).onPaging event will work but,there is bug in pagination after we use this event.As it automatically increment value of page either user click on ok or cancel(in both cases).Which lead to corrupt data of paggination.