Save entity with entity framework

Question

I'm saving entities/records with the EF, but i'm curious if there is another way of doing it.

I receive a class from a MVC controller method, so basicly i have all the info: the class's properties, including the primary key. Without EF i would do a Sql update (update table set a=b, c=d where id = 5), but with EF i got no further than this:

Get an object with ID of 5 Update the (existing) object with the new object Submitchanges.

What bothers me is that i have to get the object from the database first, where i have all the info to do an update statement.

Is there another way of doing this?

so you just dont like having to translate whatever you have to the entity object? — Nix
– Nix, Commented Apr 3, 2010 at 18:25
correct, now i'm typing ExistingPeson.Name = PostedPerson.Name etc. — Michel
– Michel, Commented Apr 6, 2010 at 12:03

Community · Accepted Answer · 2017-05-23 12:25:06Z

5

No, the pattern is typically:

select the entity
Update the properties
Save your changes

Another SO question on this topic.

edited May 23, 2017 at 12:25

CommunityBot

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answered Apr 3, 2010 at 18:20

itchi

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user1722368 · Accepted Answer · 2012-10-30 06:23:32Z

-2

u will have to create an object, update the properties and then savechanges 

try this 

using (var context = new NorthWindEntities())
{
    Product prod = new Product();
    prod.Name = "Car toy";
    prod.Price = "10.00";

    prod.SaveChanges();//this method will actuayll save the changes

}

answered Oct 30, 2012 at 6:23

user1722368

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