I have this e.g. code:

```
    var list = (from item in db.Table
        select item).ToList();

```

[do processing where I modify,add,remove items to the list with a DX GridControl]
[Ensure inserted items]
[I can see that item(s) are not in the list]

db.SubmitChanges();

Changes not reflecting the DataBase for removed items.
What is wrong?