Question

What is the best way to delete a database record using LINQ when I have the primary key?

Answer 1

If you set update checks on all your columns to never or when changed, you can simply attach an instance with the primary key and delete the row without a load.

public void DeleteCustomer(int CustomerID) {     NorthwindContext c = new NorthwindContext c;     Customer target = new Customer(){CustomerID = CustomerID};     c.Customers.Attach(target);     c.Customers.DeleteOnSubmit(target);     c.SubmitChanges();                        }