public ActionResult Index(tb_SalesOrder model)
{
if (!string.IsNullOrEmpty(model.SearchButton) || model.Page.HasValue)
{
var entities = new Demo_onlineEntities();
var results = entities.tb_SalesOrder.Where(p => (p.Bill_No == model.Bill_No)).OrderBy(p => p.ID_Product);
var pageIndex = model.Page ?? 1;
model.SearchResults = results.ToPagedList(pageIndex, RecordsperPage);
}
return(View(model));
}