Cloning data on Entity Framework

Question

I am creating software where user can create new product based on older product.

Now I need to make copying / cloning operations with Entity Framework. First I start

Answer 1

To add a new row whose content is based on an existing row, follow these steps:

1. Get an entity based on the starting row.
2. Set the entry state for the entity to Added.
3. Modify the entity.
4. Save changes.

Here's an example:

var rabbit = db.Rabbits.First(r => r.Name == "Hopper");
db.Entry(rabbit).State = EntityState.Added;
rabbit.IsFlop = false;
db.SaveChanges();