Home/ Questions/Q 8130169
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-06T08:36:34+00:00

SL4, MVVM. Our MainView has a corresponding MainViewModel as its DataContext. MainViewModel has a

  • 0

SL4, MVVM. Our MainView has a corresponding MainViewModel as its DataContext.
MainViewModel has a ThingViewModel for a property — CurrentThingViewModel .

We bind a CheckBox in the MainView to a property of ThingViewModel: 

<CheckBox IsChecked="{Binding CurrentThingViewModel.ReadOnly, Mode=TwoWay}" />

When a differnt ThingViewModel is assigned to CurrentThingViewModel, CTVM raises a PropertyChanged event. Does the CheckBox get notified, since it is bound to the property of CTVM, and not the property actually raising the PropertyChanged event?

Thanks for any insights…

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Yes, the binding will listen for a PropertyChanged event on all levels of the provided binding, if the first level binding is updating, all lower level bindings are trigerred as well.

    <CheckBox IsChecked="{Binding X.Y.Z, Mode=TwoWay}" />

    The binding will check the value of X.Y.Z if PropertyChanged events are fired on either X, Y or Z

    • 0