Right way to delete a row in ado.net entity data model

Question

I need to delete a row using ado.net entity data model. Already googling about this, but i still can't find out how to do it right.

Here's my code:

else if (mode == 3)
            {
                LaundryEntities1 db = new LaundryEntities1();
                var query = (from user in db.Users
                             where user.UserID == textBoxID.Text
                             select user).First();
                db.DeleteObject(query);
                db.SaveChanges();
                reload();
                MessageBox.Show("Succesfully delete a user");
                clear();
            }

Answer 1

I make a public class named Session

public class session
    {
        public static DatabaseEntities db = new DatabaseEntities();
        public static User user = null;
    }

and changed my code into

Users user = (from x in session.db.Users
              where x.UserID == textBoxID.Text
              select x).FirstOrDefault();
session.db.Users.DeleteObject(user);
session.db.SaveChanges();