wpf - Static property using INotifyPropertyChanged. C#

Question

I am trying create a static property where INotifyPropertyChanged will update any changes made to a DataGrid ComboBox that I am binding to.

I am getting this error,

Error CS0026 Keyword 'this' is not valid in a static property, static method, or static field

Through my searches I came upon this Why can't you use the keyword 'this' in a static method in .Net?, but even after going through everything I still can't figure out how to get this to work.

But, anything I change only negates that I am trying to make a static property with INotifyPropertyChanged???

My code:

private static List<string> _nursingHomeSectionListProperty;

public static List<string> NursingHomeSectionListProperty
{
    get { return _nursingHomeSectionListProperty; }
    set
    {
       _nursingHomeSectionListProperty = value;
       NotifyStaticPropertyChanged();
    }
}

And Property changed handler

public static event PropertyChangedEventHandler StaticPropertyChanged;

public static void NotifyStaticPropertyChanged([CallerMemberName] string propertyName = null)
    {
        StaticPropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }

And the below code is how I am using the property changed handler for non static properties,

public event PropertyChangedEventHandler PropertyChanged;

public void NotifyPropertyChanged([CallerMemberName] string propertyName = null)
   {
       PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
   }

Answer 1

Just pass null instead of this:

public static event PropertyChangedEventHandler StaticPropertyChanged;

private static void NotifyStaticPropertyChanged([CallerMemberName] string name = null)
{
    StaticPropertyChanged?.Invoke(null, new PropertyChangedEventArgs(name));
}

See this blog post for details about static property change notification.