working jqGrid Example

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/themes/base/jquery-ui.css">
<link rel="stylesheet" href="http://trirand.com/blog/jqgrid/themes/ui.jqgrid.css">
<script src="http://trirand.com/blog/jqgrid/js/i18n/grid.locale-en.js"></script>
<script src="http://trirand.com/blog/jqgrid/js/jquery.jqGrid.min.js"></script>
<table id="theGrid" class="scroll">
</table>
<div id="pager" class="scroll" style="text-align: center;">
</div>

CSS

html {
  background-color: #e2e2e2;
  margin: 0;
  padding: 0;
}

body {
  background-color: #fff;
  border-top: solid 10px #000;
  color: #333;
  font-size: .85em;
  font-family: "Segoe UI", Verdana, Helvetica, Sans-Serif;
  margin: 0;
  padding: 0;
}

a:link,
a:visited,
a:active,
a:hover {
  color: #333;
  outline: none;
  text-decoration: underline;
}

a:hover {
  /* background-color: #c7d1d6; */
}

header,
footer,
hgroup nav,
section {
  display: block;
}

.float-left {
  float: left;
}

.float-right {
  float: right;
}

.highlight {
  background-color: #a6dbed;
  padding-left: 5px;
  padding-right: 5px;
}

.clear-fix:after {
  content: ".";
  clear: both;
  display: block;
  height: 0;
  visibility: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: #000;
  margin-bottom: 0;
  padding-bottom: 0;
}

h1 {
  font-size: 2em;
}

h2 {
  font-size: 1.75em;
}

h3 {
  font-size: 1.2em;
}

h4 {
  font-size: 1.1em;
}

h5,
h6 {
  font-size: 1em;
}

#pager_left {
  width: 30%!important;
}


/* main layout 
----------------------------------------------------------*/

.content-wrapper {
  margin: 0 auto;
  /*max-width: 960px;*/
}

#body {
  background-color: #efeeef;
  clear: both;
  padding-bottom: 35px;
}

.main-content {
  background: url("../images/accent.png") no-repeat;
  padding-left: 10px;
}

.featured + .main-content {
  background: url("../images/heroaccent.png") no-repeat;
}

footer {
  clear: both;
  background-color: #e2e2e2;
  font-size: .8em;
  height: 100px;
}


/* site title
----------------------------------------------------------*/

.site-title {
  color: #807A7A;
  font-family: Rockwell, Consolas, "Courier New", Courier, monospace;
  font-size: 2.3em;
  margin: 20px 0;
}

.site-title a,
.site-title a:hover,
.site-title a:active {
  background: none;
  color: #807A7A;
  outline: none;
  text-decoration: none;
}

.header-div {
  background-color: #FFF;
  /*  background-image: -ms-linear-gradient(left, #A00800 10%, #FFB273 100%);
        background-image:...

JavaScript

jQuery(document).ready(function() {

   var DataGrid = jQuery("#theGrid");

   initDateEdit = function(elem) {
     setTimeout(function() {
       $(elem).datepicker({
         dateFormat: 'dd-M-yy',
         autoSize: true,
         showOn: 'button', // it doesn't work in searching dialog
         changeYear: true,
         changeMonth: true,
         showButtonPanel: true,
         showWeek: true,
         beforeShowDay: nonWorkingDates
       });
     }, 100);
   };
   initDateSearch = function(elem) {
     setTimeout(function() {
       $(elem).datepicker({
         dateFormat: 'dd-M-yy',
         autoSize: true,
         changeYear: true,
         changeMonth: true,
         showButtonPanel: true,
         showWeek: true,
         beforeShowDay: nonWorkingDates
       });
     }, 100)
   };

   function nonWorkingDates(date) {
     var day = date.getDay(),
       Sunday = 0,
       Monday = 1,
       Tuesday = 2,
       Wednesday = 3,
       Thursday = 4,
       Friday = 5,
       Saturday = 6;
     var closedDates = [
       [0, 0, 0000]
     ];
     var closedDays = [
       [Tuesday],
       [Wednesday],
       [Tuesday],
       [Thursday],
       [Friday],
       [Saturday],
       [Sunday]
     ];
     for (var i = 0; i < closedDays.length; i++) {
       if (day == closedDays[i][0]) {
         return [false];
       }
     }

     for (i = 0; i < closedDates.length; i++) {
       if (date.getMonth() == closedDates[i][0] - 1 &&
         date.getDate() == closedDates[i][1] &&
         date.getFullYear() == closedDates[i][2]) {
         return [false];
       }
     }
     return [true];
   }

   DataGrid.jqGrid({
     url: '@Url.Action("GridData")',
     datatype: 'json',
     mtype: 'GET',
     //'PO ID',
     colNames: ['ID', 'Week Start', 'Plu', 'Case Qty', ''],
     colModel: [{
       name: 'PO_ID',
       index: 'PO_ID',
       key: true,
       width: 55,
       editable: false,
       hidden: true
     }, {
       name: 'Week_Start',
       index:...