View notification does not work with mvvmhelper

Question

I’m using James Montemagno’s mvvmhelper to develop my app and using the same structure that he teaches to use. I mean with a Baseviewmodel and when I navigate between the pages everything works perfectly, I load the properties in the constructor of my viewmodel and they are displayed in the form. but when I make any changes to the same properties that should update my view, it doesn’t update, as if the property change isn’t notifying the view.

Someone has already gone through this using the mvvmhelper?

Answer 1

If I understand your question, you are referring to a Viewmodel that is not updating in your View view view, correct? To accomplish this your Viewmodel must implement Inotifypropertychanged and in the case of Mvvmhelper you must use Setproperty as follows, below is an example of code:

public class PersonViewModel : BaseViewModel
{
    private string _name;
    public string Name{
       get{
           return _name;
       }
       set{
           SetProperty(ref _name, value);
       }
    }
}