public void Update(T item)
 {
     using (var context = new ModelDataEntities2())
     {
         context.Entry(item).State = System.Data.Entity.EntityState.Modified;
         context.SaveChanges();
     }
 }
 public ActionResult Edit([Bind(Include = "Id,Dato,Sum,ID_Manager,ID_Client,ID_Product")] SaleInfo saleInfo)
 {
     if (ModelState.IsValid)
     {
         db.Entry(saleInfo).State = EntityState.Modified;
         db.SaveChanges();
         return(RedirectToAction("Index"));
     }
     ViewBag.ID_Client  = new SelectList(db.Client, "Id", "ClientName", saleInfo.Client.ClientName);
     ViewBag.ID_Manager = new SelectList(db.Manager, "Id", "ManagerName", saleInfo.ID_Manager);
     ViewBag.ID_Product = new SelectList(db.Product, "Id", "ProductName", saleInfo.ID_Product);
     return(View(saleInfo));
 }