public JsonResult GetProductListing(int?page, int?limit, string sortBy, string direction, string searchString = null)
{
ProductsViewModel productsViewModel = new ProductsViewModel();
productsViewModel.page = page;
productsViewModel.limit = limit;
productsViewModel.sortBy = sortBy;
productsViewModel.direction = direction;
productsViewModel.searchString = searchString;
productsViewModel.GetProductList(productsViewModel);
List <Widget> records = productsViewModel.ProductList;
int total = productsViewModel.totalRecords;
JsonResult gridData = Json(new { records, total }, JsonRequestBehavior.AllowGet);
return(gridData);
}