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15 Aug 2012, 5:33 AM
i want to have a clear understanding of "up" and "down" methods....the doc is not satisfactory for me...any one who knows where i can get...please help

15 Aug 2012, 6:25 AM
Under the covers, the up/down methods use Ext.ComponentQuery (http://docs.sencha.com/ext-js/4-1/#%21/api/Ext.ComponentQuery). The docs/examples there may help clarify things a bit.

15 Aug 2012, 9:57 AM
The source code is available online.

Basically, down just calls Ext.ComponentQuery.query() and takes the first result