C# Entity Framework with ASP.NET MVC Entity Framework and ASP.NET MVC Handling Creates and Updates

saikiran maddukuri
saikiran maddukuri
17,903 Points

where is Attach?

James Churchill you in Updating Entities CRUD operation in Entity Frame Work Basics you have used this code

context.ComicBooks.Attach(comicBook);
context.Entry(comicBook).State=EntityState.Modified;
context.SaveChanges();

where as in this tutorial you haven't yoused Attach(comicBook) insted you wrote

_context.Entry(comicBook).State=EntityState.Modified;
_context.SaveChanges();

what was the difference i mean both the snipets works well for updating or editing the content i mean what is the role of Attach in when we are Attaching the comicBook to ComicBooks collection?