Raise property on class that has the sub property

set {
this._MainAddress.PropertyChanged -= _MainAddress_PropertyChanged;
this.SetProperty(ref this._MainAddress, value);
this._MainAddress.PropertyChanged += _MainAddress_PropertyChanged;
}
}

private void _MainAddress_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
RaisePropertyChanged("MainAddress");
}