How to use Ext.define in EXTJS4

Question

I get a error:dockedItems is null or not a object. I want to know what I should do when I define a class that define an EXTJS4 class.

Ext.define("com.yx.MyPanel", {
                extend: "Ext.panel.Panel",
                config: {
                    title: "Clannad",
                    width: 100,
                    height: 100
                },
                constructor: function(config) {
                    this.initConfig(config);
                    this.callParent([config]);
                }
            });
            Ext.create("com.yx.MyPanel", {
                renderTo: Ext.getBody()
            });

Kunal Kunal · Accepted Answer · 2011-09-13T05:36:33

I have explained how to use Ext.define in ExtJS4 in bellowed link.

How to use Ext.define in ExtJS 4?

How to use Ext.define in EXTJS4

1 Answers