public void Detach(NotifyChangeEventHandler ohandler)
{
this.NotifyChanged -= ohandler;
}
public void UnRegister(NotifyChangeEventHandler handler)
{
this.Detach(handler);
}
public void Attach(NotifyChangeEventHandler ohandler)
{
this.NotifyChanged += ohandler;
}
public void Register(NotifyChangeEventHandler handler)
{
this.Attach(handler);
}