How to show combobox in ExtJS grid panel using extjs 6.0.1
<p>How to show combobox in Extjs grid panel using extjs 6.0.1</p>

<p>I saw widget column example but it is rendering combobox only when user clicks on a cell. How to show combobox by default? </p>

<p>Can someone provide a sample in fiddle? </p>