Count Daily sales on dashborad

Question

Hello Team,

Please I want to show daily sales on my mvc application dashboard by date, kindly assist

public JsonResult GetDashboardData()
        {
            ASPNETMASTERPOSTEntities db = new ASPNETMASTERPOSTEntities();
             var currentDate = DateTime.Now.Date.ToString("dd-MMM-yyyy");
          
            return Json(JsonRequestBehavior.AllowGet);
        }