EF Inserting Duplicate Parent Objects

Question

I have two classes:

public class Foo
{
    public int FooId {get;set;}
    public virtual ICollection Bars {get;set;}
}

public class Bar
{
    pu         


        

Answer 1

Try

var bar = new Bar();
context.Bars.Add(bar);
bar.Foo == foo;
context.SaveChanges();

It seems like the entity key isn't being set uniquely when assignment occurs before the entity is added to the context.