I've noticed in the Auto Complete Box if you type a selection (or paste) and then left mouse click off the control the Selected Item will not be populated.
If I type (or paste) a selection and hit the "tab" key it will select the item.
How can I select the item when the user left mouse clicks off the control?
I can easily duplicate this with the "Auto Complete Box | First Look" from the WPF Controls Example.
See the attached pics.
The first example I typed "Respect" into the autocomplete box for Best Music Hit. I hit the Tab button and the data populated.
The second example I typed "Respect" into the autocomplete box for Best Music Hit. I then left mouse clicked outside of that control and the data does not populate.