Thank you for writing.
I have tested the described scenario and on my end I can successfully prevent an item from being checked by setting the Cancel
property of the arguments in the ItemCheckedChanging
event to true
. Additionally, from the event arguments you can access the Item
and from there its CheckedState
, where you can see its state before it gets changed. Alternatively in the ItemCheckedChanged
you can get the changed value from the same property.
Please have a look at my project and see how it works. Let me know if I can be of further assistance.
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