Extjs adding panel's button to parent window's bbar?

Question

I have a button in a panel which gets rendered inside a window. And I want to be able to add that button to a bottom bar in the window.
Current I am trying to add an onRender function to the panel to get the parent window using this.findParentByType('Ext.Window')
however it returns null.

I am even heading in the right direction?

EDIT: I am using extjs 3.2.2

Answer 1

findParentByType takes xtype as parameter. So in your case you should use

this.findParentByType('window')

or

this.up('window')

Answer 2

您是否尝试过为窗口提供唯一的ID并向其添加按钮，如下所示：

Ext.getCmp('myWindowId').add(buttonPanel);

Answer 3

@Nitin Singhal @Reflux

For ExtJS4: Ext.ComponentManager.get('html dom id')