using Find() method with async/await-CodePudding

I have sync method i MVC controller , which I want to make it async it had this in the controller

  var user = _context.Users.Find(UserId);
  cart.User = user;
  _context.SaveChanges();

but when I change to await ,

  var user =await _context.Users.Find(UserId);
  cart.User = user;
  _context.SaveChanges();

it gives me error

User doesnot contain definition for 'Getawaiter' and no accessible extension accepting a first argument of type User.......

but if I change it to

 var user = await _context.Users.Where(p=>p.Id==UserId).FirstOrDefaultAsync();
 cart.User = user;
 _context.SaveChanges();

it works fine. Cann't I use find method with async/await???

CodePudding user response：

You can't just make any method async by putting await before it. There has to be an async version of the method.

CodePudding user response：

it works fine. Cann't I use find method with async/await???

For the same reason you cannot use .FirstOrDefault() with await and decided to use .FirstOrDefaultAsync();.

The method you are looking for is called .FindAsync().

CodePudding user response：

Sorry if I write it as a response but I can't comment yet. In your .NET version FindAsync() exists? Eventually you can use that.