Use Ext.extend to create new class : Ext « Ext JS « JavaScript DHTML






  1. JavaScript DHTML
  2. Ext JS
  3. Ext

Use Ext.extend to create new class

  
<html>
<head>
<title>Hello World Window</title>
<link rel="stylesheet" type="text/css" href="ext-3.0.0/resources/css/ext-all.css" />
<script type="text/javascript" src="ext-3.0.0/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="ext-3.0.0/ext-all.js"></script>

</head>
<body>
<script type="text/javascript">
Ext.onReady(function() {

  var Component =  Ext.extend(Ext.util.Observable, {
    constructor : function() {
      this.addEvents('myEventName');
      Component.superclass.constructor.call(this);
    }
  });
  
  var myComponent = new Component();
  
  myComponent.on('myEventName', function() {
     alert('hello');
  });
  
  myComponent.fireEvent('myEventName');

    
    

});
</script> 
<div id='div1'>asdf</div>
</body>
</html>








Related examples in the same category

1.use Ext.get() to get a html tag
2.Extend Ext.util.Observable to create new class
3.Add custom event and event handler to a class and fire that event
4.Call render method to render to body
5.Ext.getBody().createChild({tag: 'h2', html: 'html value'});
6.Call Cold Fusion Component and pass in parameter