Add Item "No Selection" to itemlist

[Heiko]

Hi,

I use a combobox where a observable collection of a custom class is bind to. I would like to add two more Items:

1. "Add New"
2. "No Selection"

With first item user can add a new item to collection
With second one user will be able to select no items

How can add this to items.

Thanks,
Neils

[Heiko]

Problem solved. Did not see the "ClearSelectionButtonVisibility" Property. Regarding the "Add New" topic, I just added a new instance of my class to the collection and put this to first. That's it!