I have a textbox, under a specific circumstance, its textchanged event doesn't fired.
the keydown and previewkeydown do fired.
I assume there are other control intercept the keydown event and fool around it, probably did something over it.
but what can caused the textchanged event being cut off?
or any debugging approach for this?
i tried the AddHandler to the textchanged, in case its handled prop set to true that caused the cut off. but same, the event still don't get triggered under that special circumstance.
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