Change Notifications
In order for Avalonia to know when a property on a view model has changed, the view model must implement change notifications. The easiest way to do this is to use
ReactiveUI
and make your view model class inherit from ReactiveObject
.You then add a setter for each property which calls
RaiseAndSetIfChanged
:using ReactiveUI;
public class MyViewModel : ReactiveObject
{
private string caption;
public string Caption
{
get => caption;
set => this.RaiseAndSetIfChanged(ref caption, value);
}
}
Collections also need to implement change notifications. There are a number of collections which do this for you out of the box:
AvaloniaList
is shipped with Avalonia, but note that its API may change in future so for the moment it's recommended to not use it at the application level
If you want to implement collection change notifications yourself you can implement
INotifyCollectionChanged
Last modified 1yr ago