Int32EditBox cannot apply UpdateSourceTrigger

<editors: Int32EditBox Value="{Binding MyValue, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" />

When I enter a number in the Int32EditBox and specify PropertyChanged, it does not take effect. The value is updated to my viewModel only when I lose focus. It seems that it is fixed to lostfocus.

Is there any way to set updateSourceTrigger = PropertyChanged to take effect? ​​I hope it can be triggered in real time like Textbox Update