i have code

[AllowAnonymous]
public ActionResult IndexDT(int? page, string sortOrder, string currentFilter, string searchString)
{
ViewBag.CurrentSort = sortOrder;
ViewBag.NameSortParm = String.IsNullOrEmpty(sortOrder) ? "TenSanPham desc" : "";
ViewBag.CostSortParm = sortOrder == "Gia" ? "Gia desc" : "Gia";
if (Request.HttpMethod == "GET")
{
searchString = currentFilter;
}
else
{
page = 1;
}
ViewBag.CurrentFilter = searchString;
int pageSize = 2;
int pageNumber = (page ?? 1);
return View(spBLL.ListDT(searchString, sortOrder).ToPagedList(pageNumber, pageSize));
}

@model PagedList.IPagedList<ComputerBLL.SanPham>
@{
ViewBag.Title = "IndexDT";
}
<script src="../../Scripts/jquery-1.7.1.js" type="text/javascript"></script>
<script src="../../Scripts/jquery-ui-1.8.20.js" type="text/javascript"></script>
<script src="../../Scripts/jquery.unobtrusive-ajax.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#timKiemNangCao").click(function () {
$("#search").after('');
});
});

function TimNangCao() {
    var sanpham = new Object();
    sanpham.TenSanPham = $("#name").val();
    $.ajax({
        type: "POST",
        url: '../../SanPham/TimKiemNangCao',
        data: JSON.stringify(sanpham),
        contentType: 'application/json; charset=utf-8',
        success: function (data) {
            $(document).html(data);
        },
        error: function (xhr) {
            alert(xhr.toString());
        }
    });
}

</script>
<h2>Index</h2>

<p>
@Html.ActionLink("Create New", "CreateDT")
</p>

@using (Html.BeginForm())
{
<p id="search">
Find by name: @Html.TextBox("SearchString", ViewBag.CurrentFilter as string)  
<input type="submit" value="Search" />
<a style="color:Blue; cursor:pointer" id="timKiemNangCao">Tìm kiếm nâng cao</a>
</p>
<table style="text-align:left">
<tr><td><span>Tên sản phẩm</span></td><td><

thanks !!

you can share for me source code form comment ? I want to create form comment with avatar(of user) and it can edit, delete, and save to database. thanks !!