Paging in Mvc Grid???How to do please help

Question

Hello All,

Can Any One Tell Me the Working of this code,please

<%=Html.RenderPartial("~/Views/Shared/Pagination.ascx", new ExportJquerygridtoexcel.Views.Shared.PaginationViewData()  
{
    PageIndex = ViewData.PagedList.PageIndex,
    TotalPages = ViewData.PagedList.TotalPages,
    PageActionLink = Url.Action("allCategories", "Admin", new { category = ViewData.allCategories, page = "{page}" }),
    TotalCount = ViewData.PagedList.TotalCount,
    PageSize = ViewData.PagedList.PageSize  
}, null) %>

Thnks Ritz