public BambooServerTreeNode(BambooServerModel model, BambooServer server, int imageIdx)
     : base(PlvsUtils.getServerNodeName(model, server), imageIdx)
 {
     this.model  = model;
     this.server = server;
     model.DefaultServerChanged += model_DefaultServerChanged;
 }
 void model_DefaultServerChanged(object sender, EventArgs e)
 {
     Text = PlvsUtils.getServerNodeName(model, server);
 }