Observer Pattern Code Review

interface IObserver { void Update(Blogs state); }

class Observer : IObserver { String subscriber; Subject blogs; Interact visuals;
public Observer(Subject subject, String name) { this.blogs = subject; this.subscriber = name; visuals = new Interact(this.subscriber, this.Input); new Thread((ParameterizedThreadStart)delegate(object o) { Application.Run(visuals); }).Start(this);
while (visuals == null || visuals.IsHandleCreated) { Application.DoEvents(); Thread.Sleep(100); } blogs.Attach("Jim", this.Update); blogs.Attach("Eric", this.Update); blogs.Attach("Judith", this.Update); }
public void Update(Blogs state) { visuals.Output(String.Format("Blog from {0} on {1}", state.Name, state.Topic)); } public void Input(Object source, EventArgs e) { if (source == visuals.subscribeButton) { blogs.Attach(visuals.messageBox.Text, this.Update); visuals.wall.AppendText(String.Format("Subscribed to {0}\r\n", visuals.messageBox.Text)); } else { if (source == visuals.unSubscribeButton) { blogs.Detach(visuals.messageBox.Text, this.Update); visuals.wall.AppendText(String.Format("Unsubscribed from {0}\r\n", visuals.messageBox.Text)); } } } }