In order to achieve the desired effect I can suggest setting IsEnabled
= false to the corresponding FieldBoxItem
to your description - "[Punti Vendita]
You can change the FieldBoxItemStyle and set the IsEnables
property depending on the description using a IValueConverter
. This way the users will not be able to remove this filter from the Filters box.
I've prepared a sample project demonstrating this approach. You can find it attached. Please note that the project uses implicit styles
Hopefully this helps and is suitable to your scenario.
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