Compare primary keys instead of object reference

[Bernd]

Hello.

The code below always returns false. I guess "Contains" doesn't compare primary keys to check equality.
Successors is a self-referencing  n:m relation.

Is there an option to switch this behaviour or a recommended way to handle things like this?

King regards
Bernd

idee5.DispatcherModel.Action enteredAction = context.Actions.Single(a => a.Id == TransactionInput.Text);
if (lastTransaction.Action.Successors.Contains(enteredAction))

[Bernd]

Solved it myself by using the Any-Function.

if (lastTransaction.Action.Successors.Any(a => a.Id.ToString() == TransactionInput.Text))