static void Main(string[] args)
{
XMLDoc doc = new XMLDoc();
ChartView view1 = new ChartView(doc);
GraphView view2 = new GraphView(doc);
doc.Data = 100;
doc.Data = 200;
}
public GraphView(XMLDoc sub)
{
this.sub = sub;
sub.Attach(this);
}
public ChartView(XMLDoc sub)
{
this.sub = sub;
sub.Attach(this);
}