This gave me a big headache wondering why even a list with simple data does not get shown in the tab panel. Turns out the List’s height is zero.

Most likely in your tab panel code, you did not specify a layout.

This also applies if you place your list inside an Ext.Panel which will be placed in one of the tab panels.

Just specify layout: ‘fit’ and your Ext.dataview.List should show up.

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