In my MVC project, my "catch all" MapRoute entry in global.asax.cs had a default value of page set to 1 & Model Binding by default gets its raw incoming data from RouteDataValueProvider first & then the QueryStringValueProvider.

I removed this route parameter & the Grid works perfect now.

Here is the code in aspx (view) file:

<table id="list" class="scroll" cellpadding="0" cellspacing="0"></table>
<div id="pager" class="scroll" style="text-align:center;"></div>

<script language="javascript" type="text/javascript">
$(function() {

        $("#picJobsBtn").click(function() {
            
            var gridDataUrl = '/CoJobs/JsonJobsCollection';
            var loginId = $("#LoginID").val();
            jQuery("#list").jqGrid({
            url: gridDataUrl + '?loginId=' + loginId + '&jobId=0',
                datatype: "json",
                mtype: 'GET',
                colNames: ['Date', 'Title', 'Job#', 'Location'],
                colModel: [
                  { name: 'PostDate', index: 'PostDate', width: 50, align: 'left' },
                  { name: 'Title', index: 'Title', width: 100, align: 'left' },
                  { name: 'PO_Num', index: 'PO_Num', width: 100, align: 'left' },
                  { name: 'Location', index: 'Location', width: 100, align: 'left'}],
                rowNum: 10,
                rowList: [10, 20, 30],
                height: 'auto',
                width: '700',
                page: 1,
                pager: '#pager',
                sortname: 'PostDate',
                viewrecords: true,
                sortorder: "desc",
                caption: "Pick Job"
            }).navGrid("#pager", { edit: false, add: false, del: false });
            $("#pickJobTemplate").dialog("open");
            return false;
        });

    })

</script>

Code in the controller:

        public ActionResult JsonJobsCollection(int loginId, int jobId, string sidx, string sord, int page, int rows)
        {
            Job job = new Job();
            job.LoginID = loginId;

            jobsRepository.GetAll(job, "getAllJobsByLoginId");
            int pageIndex = Convert.ToInt32(page) - 1;
            int pageSize = rows;
            int totalRecords = jobsRepository.ItemsList.Count();
            int totalPages = (int)Math.Ceiling((float)totalRecords / (float)pageSize);

            var jobList = jobsRepository.ItemsList.AsQueryable()
                                 .Skip(pageIndex * pageSize)
                                 .Take(pageSize);

            var jsonData = new { total = totalPages,
                                page = page,
                                records = totalRecords,
                                rows = (
                                from s in jobList
                                select new {
                                    i = s.JobID,
                                    cell = new string[] {
                                        s.PostDate.ToString(),
                                        s.Title.ToString(),
                                        s.PO_Num,
                                        s.Location }
                                }).ToArray()
                            };

            // Return the result in json
            return Json(jsonData, JsonRequestBehavior.AllowGet);
        }

When I put a breakpoint in the controller method on the first line (where the new Job object is created) & check the value coming in for page parameter, it is always 1. But in the FireFox browser, using the firebug tool, when I look at the URL that is sent to the server when I click the >> (Next button) after initial grid is loaded, the URL does seem to be sending the value of page as 2. Here is the URL:

http://localhost:8085/CoJobs/JsonJobsCollection?loginId=12345&jobId=0&_search=false&nd=1288983855404&rows=10&page=2&sidx=PostDate&sord=desc

Although, the Grid always displays just first 10 records of the Jobs. Also, all subsequent clicks of >> button in pager just sends page=2 in the URL.

Can someone please help me, what am I missing here? Thanks in advance!