NullreferenceException when Custom notification does not have a "CloseButton"

[kwaclaw]

Library version

2.5.1

Expected behaviour

No exception

Actual behaviour

NullReferenceException

Steps to reproduce behaviour

Create custom notification that does not have a button named "CloseButton".
NullereferenceException happens when mouse enters notification window.
It happens in NotificationDisplayPart .OnMouseEnter, where btn.Visibility is set, since btn is null.

Code to reproduce behaviour

Questions

[rollibolly]

Hi. I have tried to add a Button named CloseButton. Exception is still there. Any workaround?

[Reec-3]

In your custom display part add Bind(_notification); to the constructor but you will also need the close button as this is referenced for some reason.