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()
            });

possible duplicate of [how to use ext.define in extjs4?](http://stackoverflow.com/questions/6290729/how-to-use-ext-define-in-extjs4) — Abdel Raoof Olakara, Sep 13 '11 at 07:19

score 0 · Accepted Answer · edited May 23 '17 at 11:54

0

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

How to use Ext.define in ExtJS 4?

edited May 23 '17 at 11:54

Community

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answered Sep 13 '11 at 05:36

Kunal

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How to use Ext.define in EXTJS4

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