XAML PASSWORDBOX BINDING UPDATE

We’ll update our MainViewModel to inherit from ObservableValidator instead of ObservableObject. The CommunityToolkit includes an ObservableValidator class, which inherits from ObservableObject (the INotifyPropert圜hanged implementation), and implements the INotifyDataErrorInfo interface.

IEnumerable GetErrors( string? propertyName) Lastly, it exposes a method, GetErrors, which can be invoked in order to retrieve a list of the errors, either for a specific property, or, if propertyName is set to null, for all properties. It also exposes an event, ErrorsChanged, allowing other entities to register to be notified when the errors associated with the entity changes. This interface has been around for quite some time and exposes a single property, HasErrors, which true to it’s name is designed to return a boolean value indicating if the entity has any errors. We’ll start by taking a look at the INotifyDataErrorInfo interface. In this post we’re going to again use the community toolkit but this time we’re going to take advantage of their implementation of the INotifyDataErrorInfo interface in order to bubble up validation errors from our view model. In my previous post on Building a XAML UserControl I made use of the CommunityToolkit.Mvvm (formerly ) NuGet package to provide the implementation of INotifyPropert圜hanged used to data bind properties of our view model to the XAML controls.

Xaml passwordbox binding