// GET: Admin/Design
public ActionResult Index(DesignViewModel model, int?page)
{
var currentPage = page.HasValue ? page.Value - 1 : 0;
var pageSize = 10;
int total = 0;
var lst = _designService.GetByFilter(model.KeyWord, model.ParentCategoryId, currentPage, pageSize, out total);
model.Designs = new PagedList <Design>(lst, currentPage, pageSize, total);
ViewData["ParentCategories"] = _categoryService.GetParents(1); //parent type production
return(View(model));
}