void dscDemoServerControl_OnSelectedNodeChanged( object src, DemoServerControlNodeSelectedEventArgs e )
 {
     Response.Write( string.Format( "[node text]:{0}<br />[node value]:{1}", e.NodeText, e.NodeValue ) );
 }
 void dscDemoServerControl_OnSelectedNodeChanged(object src, DemoServerControlNodeSelectedEventArgs e)
 {
     Response.Write(string.Format("[node text]:{0}<br />[node value]:{1}", e.NodeText, e.NodeValue));
 }