/// <summary>
/// Receive its one sub node's one property has changed
/// </summary>
/// <param name="obj"> The sub node which property changed </param>
/// <param name="propertyName"> The changed property name </param>
protected void ReceiveSubPropertyChanged(TreeNodeNotifiableViewModel obj, string propertyName)
{
if (!OnSubPropertyChanged(propertyName))
{
return;
}
OnPropertyChanged(propertyName);
NotifyParentPropertyChanged(obj, propertyName);
}
/// <summary>
/// Report to its parent that its one property has changed.
/// </summary>
/// <param name="obj"> The object which property value changed </param>
/// <param name="propertyName"> The changed property name </param>
protected void NotifyParentPropertyChanged(TreeNodeNotifiableViewModel obj, string propertyName)
{
_propertyChangedNotification?.Invoke(obj, propertyName);
}
public void AddNode(TreeNodeNotifiableViewModel node)
{
node._propertyChangedNotification = ReceiveSubPropertyChanged;
base.AddNode(node);
}