Non-static method requires a target.

@model ICollection<GP_WMS.Model.Models.JobNaming>
@using System.Linq;
@using System.Data.Entity;

@{
	ViewBag.Title = "Job Naming";
}

@section featured {
	<section class="featured">
		<div class="content-wrapper">
			<hgroup class="title">
				<h1>@ViewBag.Title</h1>
			</hgroup>
		</div>
	</section>
}



<div style="width:100%;float:left;padding-bottom:50px;">
	<h2>List 0f Job Name</h2>
	<p></p>
	<a href='#' id="btnAddNew">@Html.Raw("<img src='/images/file_add.png' title='Add New'/>")</a>
    <a href='#' onclick= "check()" id="btnSelectAll">@Html.Raw("<img src='/images/selectall.gif' title='Select All'/>")</a>
	<a href='#' onclick= "uncheck()"  id="btnDeselectAll">@Html.Raw("<img src='/images/deselectall.gif' title='Unselect All'/>")</a>
	<a href='#' id="btnDeleteAll">@Html.Raw("<img src='/images/delete all icon.png' title='Delete All'/>")</a>
	
    
    @{ var grid = new WebGrid(Model, canPage: true, rowsPerPage: 50, selectionFieldName: "selectedRow", ajaxUpdateContainerId: "gridContent"); grid.Pager(WebGridPagerModes.NextPrevious);
		<div id="gridContent" class="articleHeader article_lst">
			@grid.GetHtml(
            htmlAttributes: new { id = "GridID" },
            tableStyle: "webGrid",
			headerStyle: "",
			alternatingRowStyle: "alt",
			selectedRowStyle: "select",
			columns: grid.Columns(
            grid.Column("",style: "col3" , format: @<text><input id="chkSelected" class="display-mode" name="select" type="checkbox" value="@item.Value.JobNamingID" /></text>),
            grid.Column("Customer", style: "col2", format: @<text><span id="Customer" class="display-mode">@item.CustomerId</span>
						@Html.Label("Customer-Edit", (string)item.CustomerId, new { @class = "edit-mode" })</text>),
            grid.Column("Job Name", style: "col2", format: @<text><span id="JobName" class="display-mode">@item.JobName</span>
						@Html.TextBox("JobName-Edit", (string)item.JobNamingName, new { @class = "edit-mode" })</text>),
            grid.Column("Is Active", style: "col3", format: @<text>@{bool isActive = Convert.ToBoolean(item.IsActive);
						<span id="IsActive" class="display-mode">@Convert.ToBoolean(item.IsActive)</span>
						@Html.CheckBox("IsActive-Edit", isActive, new { @class = "edit-mode" })}</text>),
            grid.Column("", style: "col1", format: @<text><div style="padding-left:20px;">
			<a href='#' class="btn_grid edit-item display-mode" id="@item.JobNamingID">@Html.Raw("<img src='/images/edit-icon.png' title='Edit'/>")</a>
			<a href='#' class="btn_grid display-mode delete-item" id="@item.JobNamingID">@Html.Raw("<img src='/images/delete icon.png' title='Delete'/>")</a>
			<a href='#' class="btn_grid save-item edit-mode" id="@item.JobNamingID">Save</a>
			<a href='#' class="btn_grid cancel-item edit-mode" id="@item.JobNamingID">Cancel</a>
			</div></text>)))

		</div>
}
</div>

<script type="text/javascript">

    $(function () {

        $('.edit-mode').hide();

        $('#btnAddNew').click(function () {

            if ($('.add-item').length == 0) {

                var newRow = $("<tr>");
                newRow.append("<td>&nbsp;</td>");
                newRow.append("<td><select id = 'CustomerId-Add'><option value='1'>OCBC Bank</option><option value='2'>Ge-Pap</option><option value='3'>TESCO</option></select></td>");
                newRow.append("<td><input type='text' id='JobName-Add'/></td>");
                newRow.append("<td><input type='checkbox' id='IsActive-Add'/></td>");
                newRow.append("<td style='padding-left:20px'><button class='btn_grid add-item edit-mode' id='0'>Add</button>&nbsp;<button class='btn_grid remove-item edit-mode' id='0'>Cancel</button></td>");

                $('#gridContent tbody:last').append(newRow);
                //                $(".datepicker").datepicker({ format: 'dd/mm/yyyy', autoclose: true, todayBtn: 'linked' })
                //                $(".datepicker").datepicker("update", new Date());

                }



            $('.add-item').on('click', function () {
                var tr = $(this).parents('tr:first');
                var JobNamingID = $(this).prop('id');
                var CustomerId = tr.find('#CustomerId-Add').val();
                var JobName = tr.find('#JobName-Add').val();
                var IsActive = tr.find('#IsActive-Add').prop("checked");

                $.post(
						'/Master/SaveJobNaming/',
						{ JobNamingID: JobNamingID, CustomerId: CustomerId, JobName: JobName, IsActive: IsActive },
						function (item) {
						    tr.find('#CustomerId').text(item.CustomerId);
						    tr.find('#JobName').text(item.JobName);
						    tr.find('#IsActive').text(item.IsActive);
						    alert("Successfully Saved");
						    location.reload();      // refresh the page
						}, "json");
                tr.remove();
            });

            $('.remove-item').on('click', function () {
                var tr = $(this).parents('tr:first');
                tr.remove();
            });

        });

        $('.edit-item').on('click', function () {
            $('.edit-mode').hide();
            $('.delete-mode').hide();
            $('.display-mode').show();
            var tr = $(this).parents('tr:first');
            tr.find('.edit-mode, .display-mode').toggle();
        });



        $('.save-item').on('click', function () {
            var tr = $(this).parents('tr:first');
            var JobNamingID = $(this).prop('id');
            var CustomerName = tr.find('#CustomerName-Edit').val();
            var JobName = tr.find('#JobName-Edit').val();
            var IsActive = tr.find('#IsActive-Edit').prop("checked");
            $.post(
								'/Master/SaveJobNaming/',
								{ JobNamingID: JobNamingID, CustomerId: CustomerName, JobName: JobName, IsActive: IsActive },
								function (item) {
								    tr.find('#CustomerName').text(item.CustomerId);
								    tr.find('#JobName').text(item.JobName);
								    tr.find('#IsActive').text(item.IsActive);
								}, "json");
            tr.find('.edit-mode, .display-mode').toggle();
            alert("Successfully Saved");
            location.reload();      // refresh the page
        });



    });

    
    </script

#region Insert & Save
        public JsonResult SaveJobNaming(JobNaming jobName)
        {

            using (BulkMailing2015Context db = new BulkMailing2015Context(connection))
            {

                _jobNameRepository = new GenericRepository<JobNaming>(db);

                var q = from tbl in db.JobNamings
                        where tbl.JobNamingID == jobName.JobNamingID
                        select tbl;

                if (q.Count() > 0) <------- Error in here
                {
                    foreach (var item in q)
                    {
                        item.CustomerId = jobName.CustomerId;
                        item.JobName = jobName.JobName;
                        item.IsActive = jobName.IsActive;

                        _jobNameRepository.Update(item);
                    }
                }
                else
                {
                    _jobNameRepository.Insert(jobName);

                }

                _jobNameRepository.Save();

                return Json(new { JobNamingID = jobName.JobNamingID, CustomerId = jobName.CustomerId, JobName = jobName.JobName, IsActive = jobName.IsActive });
            }
        }
        #endregion