View values not updating in MVC4

See more:

C#

ASP.NET

MVC4

Hi,
What I have did so far,
Step 1:
a) Created a view Course and added some textboxes, dropdowns and an actionlink.

@Html.ActionLink("Search", "Search", "Search", new { id = "new-value-link", })

b) Then added a div, which is used to open a partial view as popup

<div id="dialog">
</div>

c) On actionlink click, opened a partial view as popup through jquery

<script type="text/Javascript">
    $(document).ready(function () {
        
        $('#new-value-link').click(function () {
            var href = this.href;
            $('#dialog').dialog({
                modal: true,
                height: 480,
                width: 580,
                open: function (event, ui) {
                    $(this).load(href, function (result) {
                       
                        $('#idSearchlbx').click(function () {
                            var retCourseId = $("#idSearchlbx option:selected").val();
                            $('#dialog').dialog('close');
                            $.ajax({
                                type: "POST",
                                url: "/Course/Course/",
                                data: { "retCourseId": retCourseId },
                                dataType: "html",
                                success: function (evt) {
                                   
                                },
                                error: function (req, status, error) {
                                    alert("Error!Occured");
                                }
                            });
                        });
                        
                    });
                }
            });
            return false;
        });
    });
</script>

d) In partial view,

@Html.ListBoxFor(m => m.SelectedId, new SelectList(Model.Groups, "Value", "Text"), new { id = "idSearchlbx", style = "height:365px;width:550px;" })

On listbox item click, ID of selected item value will be passed to action- controller in parent view (through above mentioned jquery). In that action, I have fetch the details corresponding to that id and return the details as model object. (like return View(model)).But the values are not reflected in view.