public ActionResult DeleteConfirmed(int id)
{
cow cow = db.cow.Find(id);
db.cow.Remove(cow);
db.SaveChanges();
return(RedirectToAction("Index"));
}
//
// GET: /cow/Edit/5
public ActionResult Edit(int id = 0)
{
cow cow = db.cow.Find(id);
if (cow == null)
{
return(HttpNotFound());
}
return(View(cow));
}
public ActionResult Edit(cow cow)
{
if (ModelState.IsValid)
{
var item = db.cow.AsNoTracking().SingleOrDefault(g => g.cowId == cow.cowId);
if (item != null && item.id != cow.id)
{
ViewBag.error = "奶牛编号重复，请修改";
return(View(cow));
}
db.Entry(cow).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(cow));
}