When a ComboBoxField has AllowEdit bound, changing the bound value does not update the UI until the user mouses over the control. ie the drop down arrows do not appear and disappear when the property is changed, only when the user mouses over.
I put together a blog post with a simple example
https://wpfthoughts.blogspot.com/2022/11/infragistics-comboboxfield-does-not.html
Hello Harry,
Thank you for your post .I am able to reproduce the behavior you described. I am going to log this issue into our internal bug tracking system.
I have created a private case C-00227260 to link the bug. You can access the private case with your Infragistics account ->support section.
let me know if you have further question or concern.
Regards